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Finding the Fourth Proportional to 16,605,129.80, 24,918,192.30 and 9,781,689.80

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Solution

The fourth proportional to 16,605,129.80, 24,918,192.30 and 9,781,689.80 is: 14,678,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,605,129.80 : 24,918,192.30 = 9,781,689.80 : x
  2. Step 2: Convert to fraction form
    16,605,129.80/24,918,192.30 = 9,781,689.80/x
  3. Step 3: Cross multiply
    16,605,129.80x = 24,918,192.30 × 9,781,689.80
  4. Step 4: Simplify right side
    16,605,129.80x = 243,742,027,455,348.56
  5. Step 5: Solve for x
    x = 243,742,027,455,348.56/16,605,129.80
  6. Step 6: Final answer
    x = 14,678,718.59

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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.