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Finding the Fourth Proportional to 40,625.80, 60,843.66 and 35,139.40

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Solution

The fourth proportional to 40,625.80, 60,843.66 and 35,139.40 is: 52,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,625.80 : 60,843.66 = 35,139.40 : x
  2. Step 2: Convert to fraction form
    40,625.80/60,843.66 = 35,139.40/x
  3. Step 3: Cross multiply
    40,625.80x = 60,843.66 × 35,139.40
  4. Step 4: Simplify right side
    40,625.80x = 2,138,009,706.20
  5. Step 5: Solve for x
    x = 2,138,009,706.20/40,625.80
  6. Step 6: Final answer
    x = 52,626.89

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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.