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Finding the Fourth Proportional to 9,907,657.60, 14,847,489.60 and 7,328,747.20

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Solution

The fourth proportional to 9,907,657.60, 14,847,489.60 and 7,328,747.20 is: 10,982,767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907,657.60 : 14,847,489.60 = 7,328,747.20 : x
  2. Step 2: Convert to fraction form
    9,907,657.60/14,847,489.60 = 7,328,747.20/x
  3. Step 3: Cross multiply
    9,907,657.60x = 14,847,489.60 × 7,328,747.20
  4. Step 4: Simplify right side
    9,907,657.60x = 108,813,497,833,029.12
  5. Step 5: Solve for x
    x = 108,813,497,833,029.12/9,907,657.60
  6. Step 6: Final answer
    x = 10,982,767.29

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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.