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Finding the Fourth Proportional to 41,139.88, 61,710.02 and 9,975.12

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Solution

The fourth proportional to 41,139.88, 61,710.02 and 9,975.12 is: 14,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,139.88 : 61,710.02 = 9,975.12 : x
  2. Step 2: Convert to fraction form
    41,139.88/61,710.02 = 9,975.12/x
  3. Step 3: Cross multiply
    41,139.88x = 61,710.02 × 9,975.12
  4. Step 4: Simplify right side
    41,139.88x = 615,564,854.70
  5. Step 5: Solve for x
    x = 615,564,854.70/41,139.88
  6. Step 6: Final answer
    x = 14,962.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.