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Finding the Fourth Proportional to 5,656.95, 8,487.14 and 1,761.39

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Solution

The fourth proportional to 5,656.95, 8,487.14 and 1,761.39 is: 2,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.95 : 8,487.14 = 1,761.39 : x
  2. Step 2: Convert to fraction form
    5,656.95/8,487.14 = 1,761.39/x
  3. Step 3: Cross multiply
    5,656.95x = 8,487.14 × 1,761.39
  4. Step 4: Simplify right side
    5,656.95x = 14,949,154.72
  5. Step 5: Solve for x
    x = 14,949,154.72/5,656.95
  6. Step 6: Final answer
    x = 2,642.62

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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.