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Finding the Fourth Proportional to 17,799,909.60, 26,699,864.40 and 9,709,759.20

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Solution

The fourth proportional to 17,799,909.60, 26,699,864.40 and 9,709,759.20 is: 14,564,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,799,909.60 : 26,699,864.40 = 9,709,759.20 : x
  2. Step 2: Convert to fraction form
    17,799,909.60/26,699,864.40 = 9,709,759.20/x
  3. Step 3: Cross multiply
    17,799,909.60x = 26,699,864.40 × 9,709,759.20
  4. Step 4: Simplify right side
    17,799,909.60x = 259,249,253,996,652.44
  5. Step 5: Solve for x
    x = 259,249,253,996,652.44/17,799,909.60
  6. Step 6: Final answer
    x = 14,564,638.80

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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.