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Finding the Fourth Proportional to 9,859,809.60, 14,761,720.80 and 9,859,809.60

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Solution

The fourth proportional to 9,859,809.60, 14,761,720.80 and 9,859,809.60 is: 14,761,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,859,809.60 : 14,761,720.80 = 9,859,809.60 : x
  2. Step 2: Convert to fraction form
    9,859,809.60/14,761,720.80 = 9,859,809.60/x
  3. Step 3: Cross multiply
    9,859,809.60x = 14,761,720.80 × 9,859,809.60
  4. Step 4: Simplify right side
    9,859,809.60x = 145,547,756,456,359.69
  5. Step 5: Solve for x
    x = 145,547,756,456,359.69/9,859,809.60
  6. Step 6: Final answer
    x = 14,761,720.80

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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.