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Finding the Fourth Proportional to 7,459.71, 11,192.81 and 3,761.25

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Solution

The fourth proportional to 7,459.71, 11,192.81 and 3,761.25 is: 5,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.71 : 11,192.81 = 3,761.25 : x
  2. Step 2: Convert to fraction form
    7,459.71/11,192.81 = 3,761.25/x
  3. Step 3: Cross multiply
    7,459.71x = 11,192.81 × 3,761.25
  4. Step 4: Simplify right side
    7,459.71x = 42,098,956.61
  5. Step 5: Solve for x
    x = 42,098,956.61/7,459.71
  6. Step 6: Final answer
    x = 5,643.51

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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.