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Finding the Fourth Proportional to 66,380.52, 99,569.52 and 16,460.76

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Solution

The fourth proportional to 66,380.52, 99,569.52 and 16,460.76 is: 24,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,380.52 : 99,569.52 = 16,460.76 : x
  2. Step 2: Convert to fraction form
    66,380.52/99,569.52 = 16,460.76/x
  3. Step 3: Cross multiply
    66,380.52x = 99,569.52 × 16,460.76
  4. Step 4: Simplify right side
    66,380.52x = 1,638,989,972.04
  5. Step 5: Solve for x
    x = 1,638,989,972.04/66,380.52
  6. Step 6: Final answer
    x = 24,690.83

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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.