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Finding the Fourth Proportional to 10,437.76, 15,657.17 and 3,417.15

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Solution

The fourth proportional to 10,437.76, 15,657.17 and 3,417.15 is: 5,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,437.76 : 15,657.17 = 3,417.15 : x
  2. Step 2: Convert to fraction form
    10,437.76/15,657.17 = 3,417.15/x
  3. Step 3: Cross multiply
    10,437.76x = 15,657.17 × 3,417.15
  4. Step 4: Simplify right side
    10,437.76x = 53,502,940.09
  5. Step 5: Solve for x
    x = 53,502,940.09/10,437.76
  6. Step 6: Final answer
    x = 5,125.90

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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.