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Finding the Fourth Proportional to 24,139.80, 36,209.70 and 15,845.40

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Solution

The fourth proportional to 24,139.80, 36,209.70 and 15,845.40 is: 23,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,139.80 : 36,209.70 = 15,845.40 : x
  2. Step 2: Convert to fraction form
    24,139.80/36,209.70 = 15,845.40/x
  3. Step 3: Cross multiply
    24,139.80x = 36,209.70 × 15,845.40
  4. Step 4: Simplify right side
    24,139.80x = 573,757,180.38
  5. Step 5: Solve for x
    x = 573,757,180.38/24,139.80
  6. Step 6: Final answer
    x = 23,768.10

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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.