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Finding the Fourth Proportional to 15,998.60, 22,346.20 and 15,998.60

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Solution

The fourth proportional to 15,998.60, 22,346.20 and 15,998.60 is: 22,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.60 : 22,346.20 = 15,998.60 : x
  2. Step 2: Convert to fraction form
    15,998.60/22,346.20 = 15,998.60/x
  3. Step 3: Cross multiply
    15,998.60x = 22,346.20 × 15,998.60
  4. Step 4: Simplify right side
    15,998.60x = 357,507,915.32
  5. Step 5: Solve for x
    x = 357,507,915.32/15,998.60
  6. Step 6: Final answer
    x = 22,346.20

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.