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Finding the Fourth Proportional to 22,698,998.40, 34,048,497.60 and 20,608,809.60

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Solution

The fourth proportional to 22,698,998.40, 34,048,497.60 and 20,608,809.60 is: 30,913,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,698,998.40 : 34,048,497.60 = 20,608,809.60 : x
  2. Step 2: Convert to fraction form
    22,698,998.40/34,048,497.60 = 20,608,809.60/x
  3. Step 3: Cross multiply
    22,698,998.40x = 34,048,497.60 × 20,608,809.60
  4. Step 4: Simplify right side
    22,698,998.40x = 701,699,004,204,457
  5. Step 5: Solve for x
    x = 701,699,004,204,457/22,698,998.40
  6. Step 6: Final answer
    x = 30,913,214.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.