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Finding the Fourth Proportional to 16,700.55, 25,038.96 and 8,374.56

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Solution

The fourth proportional to 16,700.55, 25,038.96 and 8,374.56 is: 12,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,700.55 : 25,038.96 = 8,374.56 : x
  2. Step 2: Convert to fraction form
    16,700.55/25,038.96 = 8,374.56/x
  3. Step 3: Cross multiply
    16,700.55x = 25,038.96 × 8,374.56
  4. Step 4: Simplify right side
    16,700.55x = 209,690,272.86
  5. Step 5: Solve for x
    x = 209,690,272.86/16,700.55
  6. Step 6: Final answer
    x = 12,555.89

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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.