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Finding the Fourth Proportional to 66,655.71, 92,008.04 and 38,372.67

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Solution

The fourth proportional to 66,655.71, 92,008.04 and 38,372.67 is: 52,967.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,655.71 : 92,008.04 = 38,372.67 : x
  2. Step 2: Convert to fraction form
    66,655.71/92,008.04 = 38,372.67/x
  3. Step 3: Cross multiply
    66,655.71x = 92,008.04 × 38,372.67
  4. Step 4: Simplify right side
    66,655.71x = 3,530,593,964.40
  5. Step 5: Solve for x
    x = 3,530,593,964.40/66,655.71
  6. Step 6: Final answer
    x = 52,967.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.