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Finding the Fourth Proportional to 18,704,734.60, 28,057,101.90 and 16,153,817.80

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Solution

The fourth proportional to 18,704,734.60, 28,057,101.90 and 16,153,817.80 is: 24,230,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704,734.60 : 28,057,101.90 = 16,153,817.80 : x
  2. Step 2: Convert to fraction form
    18,704,734.60/28,057,101.90 = 16,153,817.80/x
  3. Step 3: Cross multiply
    18,704,734.60x = 28,057,101.90 × 16,153,817.80
  4. Step 4: Simplify right side
    18,704,734.60x = 453,229,312,088,633.81
  5. Step 5: Solve for x
    x = 453,229,312,088,633.81/18,704,734.60
  6. Step 6: Final answer
    x = 24,230,726.70

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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.