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Finding the Fourth Proportional to 66,889.53, 92,306.79 and 38,594.61

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Solution

The fourth proportional to 66,889.53, 92,306.79 and 38,594.61 is: 53,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,889.53 : 92,306.79 = 38,594.61 : x
  2. Step 2: Convert to fraction form
    66,889.53/92,306.79 = 38,594.61/x
  3. Step 3: Cross multiply
    66,889.53x = 92,306.79 × 38,594.61
  4. Step 4: Simplify right side
    66,889.53x = 3,562,544,560.40
  5. Step 5: Solve for x
    x = 3,562,544,560.40/66,889.53
  6. Step 6: Final answer
    x = 53,260.12

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1.5x scale

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.