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Finding the Fourth Proportional to 66,586.76, 91,892.42 and 38,292.44

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Solution

The fourth proportional to 66,586.76, 91,892.42 and 38,292.44 is: 52,845.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,586.76 : 91,892.42 = 38,292.44 : x
  2. Step 2: Convert to fraction form
    66,586.76/91,892.42 = 38,292.44/x
  3. Step 3: Cross multiply
    66,586.76x = 91,892.42 × 38,292.44
  4. Step 4: Simplify right side
    66,586.76x = 3,518,785,304.77
  5. Step 5: Solve for x
    x = 3,518,785,304.77/66,586.76
  6. Step 6: Final answer
    x = 52,845.12

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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.