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Finding the Fourth Proportional to 24,139.70, 36,209.55 and 18,307.70

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Solution

The fourth proportional to 24,139.70, 36,209.55 and 18,307.70 is: 27,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,139.70 : 36,209.55 = 18,307.70 : x
  2. Step 2: Convert to fraction form
    24,139.70/36,209.55 = 18,307.70/x
  3. Step 3: Cross multiply
    24,139.70x = 36,209.55 × 18,307.70
  4. Step 4: Simplify right side
    24,139.70x = 662,913,578.54
  5. Step 5: Solve for x
    x = 662,913,578.54/24,139.70
  6. Step 6: Final answer
    x = 27,461.55

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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.