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Finding the Fourth Proportional to 66,463.46, 91,727.46 and 37,787.45

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Solution

The fourth proportional to 66,463.46, 91,727.46 and 37,787.45 is: 52,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,463.46 : 91,727.46 = 37,787.45 : x
  2. Step 2: Convert to fraction form
    66,463.46/91,727.46 = 37,787.45/x
  3. Step 3: Cross multiply
    66,463.46x = 91,727.46 × 37,787.45
  4. Step 4: Simplify right side
    66,463.46x = 3,466,146,349.74
  5. Step 5: Solve for x
    x = 3,466,146,349.74/66,463.46
  6. Step 6: Final answer
    x = 52,151.16

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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.