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Finding the Fourth Proportional to 42,406.80, 63,610.20 and 41,677.80

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Solution

The fourth proportional to 42,406.80, 63,610.20 and 41,677.80 is: 62,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,406.80 : 63,610.20 = 41,677.80 : x
  2. Step 2: Convert to fraction form
    42,406.80/63,610.20 = 41,677.80/x
  3. Step 3: Cross multiply
    42,406.80x = 63,610.20 × 41,677.80
  4. Step 4: Simplify right side
    42,406.80x = 2,651,133,193.56
  5. Step 5: Solve for x
    x = 2,651,133,193.56/42,406.80
  6. Step 6: Final answer
    x = 62,516.70

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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.