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Finding the Fourth Proportional to 66,251.52, 91,429.52 and 37,962.68

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Solution

The fourth proportional to 66,251.52, 91,429.52 and 37,962.68 is: 52,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,251.52 : 91,429.52 = 37,962.68 : x
  2. Step 2: Convert to fraction form
    66,251.52/91,429.52 = 37,962.68/x
  3. Step 3: Cross multiply
    66,251.52x = 91,429.52 × 37,962.68
  4. Step 4: Simplify right side
    66,251.52x = 3,470,908,963.35
  5. Step 5: Solve for x
    x = 3,470,908,963.35/66,251.52
  6. Step 6: Final answer
    x = 52,389.88

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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.