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Finding the Fourth Proportional to 55,425.80, 83,138.70 and 37,711.10

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Solution

The fourth proportional to 55,425.80, 83,138.70 and 37,711.10 is: 56,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,425.80 : 83,138.70 = 37,711.10 : x
  2. Step 2: Convert to fraction form
    55,425.80/83,138.70 = 37,711.10/x
  3. Step 3: Cross multiply
    55,425.80x = 83,138.70 × 37,711.10
  4. Step 4: Simplify right side
    55,425.80x = 3,135,251,829.57
  5. Step 5: Solve for x
    x = 3,135,251,829.57/55,425.80
  6. Step 6: Final answer
    x = 56,566.65

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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.