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Finding the Fourth Proportional to 83,959.40, 125,909.70 and 24,779.40

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Solution

The fourth proportional to 83,959.40, 125,909.70 and 24,779.40 is: 37,160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,959.40 : 125,909.70 = 24,779.40 : x
  2. Step 2: Convert to fraction form
    83,959.40/125,909.70 = 24,779.40/x
  3. Step 3: Cross multiply
    83,959.40x = 125,909.70 × 24,779.40
  4. Step 4: Simplify right side
    83,959.40x = 3,119,966,820.18
  5. Step 5: Solve for x
    x = 3,119,966,820.18/83,959.40
  6. Step 6: Final answer
    x = 37,160.42

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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.