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Finding the Fourth Proportional to 66,515.38, 99,773.06 and 44,372

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Solution

The fourth proportional to 66,515.38, 99,773.06 and 44,372 is: 66,557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.38 : 99,773.06 = 44,372 : x
  2. Step 2: Convert to fraction form
    66,515.38/99,773.06 = 44,372/x
  3. Step 3: Cross multiply
    66,515.38x = 99,773.06 × 44,372
  4. Step 4: Simplify right side
    66,515.38x = 4,427,130,218.32
  5. Step 5: Solve for x
    x = 4,427,130,218.32/66,515.38
  6. Step 6: Final answer
    x = 66,557.99

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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.