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Finding the Fourth Proportional to 66,005.62, 91,082.13 and 37,705.78

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Solution

The fourth proportional to 66,005.62, 91,082.13 and 37,705.78 is: 52,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,005.62 : 91,082.13 = 37,705.78 : x
  2. Step 2: Convert to fraction form
    66,005.62/91,082.13 = 37,705.78/x
  3. Step 3: Cross multiply
    66,005.62x = 91,082.13 × 37,705.78
  4. Step 4: Simplify right side
    66,005.62x = 3,434,322,755.71
  5. Step 5: Solve for x
    x = 3,434,322,755.71/66,005.62
  6. Step 6: Final answer
    x = 52,030.76

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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.