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Finding the Fourth Proportional to 66,192.89, 99,233.51 and 28,724.72

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Solution

The fourth proportional to 66,192.89, 99,233.51 and 28,724.72 is: 43,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,192.89 : 99,233.51 = 28,724.72 : x
  2. Step 2: Convert to fraction form
    66,192.89/99,233.51 = 28,724.72/x
  3. Step 3: Cross multiply
    66,192.89x = 99,233.51 × 28,724.72
  4. Step 4: Simplify right side
    66,192.89x = 2,850,454,149.58
  5. Step 5: Solve for x
    x = 2,850,454,149.58/66,192.89
  6. Step 6: Final answer
    x = 43,062.85

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1.5x scale

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.