Home / 83,597.11-125,397.59-20,417.76

Finding the Fourth Proportional to 83,597.11, 125,397.59 and 20,417.76

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Solution

The fourth proportional to 83,597.11, 125,397.59 and 20,417.76 is: 30,627.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,597.11 : 125,397.59 = 20,417.76 : x
  2. Step 2: Convert to fraction form
    83,597.11/125,397.59 = 20,417.76/x
  3. Step 3: Cross multiply
    83,597.11x = 125,397.59 × 20,417.76
  4. Step 4: Simplify right side
    83,597.11x = 2,560,337,897.20
  5. Step 5: Solve for x
    x = 2,560,337,897.20/83,597.11
  6. Step 6: Final answer
    x = 30,627.11

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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.