Home / 25,691.50-38,545.02-18,209.53

Finding the Fourth Proportional to 25,691.50, 38,545.02 and 18,209.53

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Solution

The fourth proportional to 25,691.50, 38,545.02 and 18,209.53 is: 27,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.50 : 38,545.02 = 18,209.53 : x
  2. Step 2: Convert to fraction form
    25,691.50/38,545.02 = 18,209.53/x
  3. Step 3: Cross multiply
    25,691.50x = 38,545.02 × 18,209.53
  4. Step 4: Simplify right side
    25,691.50x = 701,886,698.04
  5. Step 5: Solve for x
    x = 701,886,698.04/25,691.50
  6. Step 6: Final answer
    x = 27,319.80

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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.