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Finding the Fourth Proportional to 41,201.40, 61,931.70 and 40,423.80

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Solution

The fourth proportional to 41,201.40, 61,931.70 and 40,423.80 is: 60,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,201.40 : 61,931.70 = 40,423.80 : x
  2. Step 2: Convert to fraction form
    41,201.40/61,931.70 = 40,423.80/x
  3. Step 3: Cross multiply
    41,201.40x = 61,931.70 × 40,423.80
  4. Step 4: Simplify right side
    41,201.40x = 2,503,514,654.46
  5. Step 5: Solve for x
    x = 2,503,514,654.46/41,201.40
  6. Step 6: Final answer
    x = 60,762.85

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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.