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Finding the Fourth Proportional to 40,331.80, 60,497.70 and 39,675.70

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Solution

The fourth proportional to 40,331.80, 60,497.70 and 39,675.70 is: 59,513.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,331.80 : 60,497.70 = 39,675.70 : x
  2. Step 2: Convert to fraction form
    40,331.80/60,497.70 = 39,675.70/x
  3. Step 3: Cross multiply
    40,331.80x = 60,497.70 × 39,675.70
  4. Step 4: Simplify right side
    40,331.80x = 2,400,288,595.89
  5. Step 5: Solve for x
    x = 2,400,288,595.89/40,331.80
  6. Step 6: Final answer
    x = 59,513.55

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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.