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Finding the Fourth Proportional to 44,586, 66,909.72 and 15,402

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Solution

The fourth proportional to 44,586, 66,909.72 and 15,402 is: 23,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,586 : 66,909.72 = 15,402 : x
  2. Step 2: Convert to fraction form
    44,586/66,909.72 = 15,402/x
  3. Step 3: Cross multiply
    44,586x = 66,909.72 × 15,402
  4. Step 4: Simplify right side
    44,586x = 1,030,543,507.44
  5. Step 5: Solve for x
    x = 1,030,543,507.44/44,586
  6. Step 6: Final answer
    x = 23,113.61

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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.