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Finding the Fourth Proportional to 66,422.52, 91,658.49 and 37,355.24

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Solution

The fourth proportional to 66,422.52, 91,658.49 and 37,355.24 is: 51,547.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422.52 : 91,658.49 = 37,355.24 : x
  2. Step 2: Convert to fraction form
    66,422.52/91,658.49 = 37,355.24/x
  3. Step 3: Cross multiply
    66,422.52x = 91,658.49 × 37,355.24
  4. Step 4: Simplify right side
    66,422.52x = 3,423,924,433.70
  5. Step 5: Solve for x
    x = 3,423,924,433.70/66,422.52
  6. Step 6: Final answer
    x = 51,547.64

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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.