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Finding the Fourth Proportional to 8,805,657.60, 13,208,486.40 and 3,766,809.60

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Solution

The fourth proportional to 8,805,657.60, 13,208,486.40 and 3,766,809.60 is: 5,650,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805,657.60 : 13,208,486.40 = 3,766,809.60 : x
  2. Step 2: Convert to fraction form
    8,805,657.60/13,208,486.40 = 3,766,809.60/x
  3. Step 3: Cross multiply
    8,805,657.60x = 13,208,486.40 × 3,766,809.60
  4. Step 4: Simplify right side
    8,805,657.60x = 49,753,853,372,989.45
  5. Step 5: Solve for x
    x = 49,753,853,372,989.45/8,805,657.60
  6. Step 6: Final answer
    x = 5,650,214.40

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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.