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Finding the Fourth Proportional to 66,574.18, 91,872.99 and 37,892.44

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Solution

The fourth proportional to 66,574.18, 91,872.99 and 37,892.44 is: 52,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574.18 : 91,872.99 = 37,892.44 : x
  2. Step 2: Convert to fraction form
    66,574.18/91,872.99 = 37,892.44/x
  3. Step 3: Cross multiply
    66,574.18x = 91,872.99 × 37,892.44
  4. Step 4: Simplify right side
    66,574.18x = 3,481,291,761.20
  5. Step 5: Solve for x
    x = 3,481,291,761.20/66,574.18
  6. Step 6: Final answer
    x = 52,291.92

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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.