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Finding the Fourth Proportional to 8,700.69, 13,051.49 and 2,461.16

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Solution

The fourth proportional to 8,700.69, 13,051.49 and 2,461.16 is: 3,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.69 : 13,051.49 = 2,461.16 : x
  2. Step 2: Convert to fraction form
    8,700.69/13,051.49 = 2,461.16/x
  3. Step 3: Cross multiply
    8,700.69x = 13,051.49 × 2,461.16
  4. Step 4: Simplify right side
    8,700.69x = 32,121,805.13
  5. Step 5: Solve for x
    x = 32,121,805.13/8,700.69
  6. Step 6: Final answer
    x = 3,691.87

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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.