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Finding the Fourth Proportional to 34,545.97, 51,711.69 and 18,711.68

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Solution

The fourth proportional to 34,545.97, 51,711.69 and 18,711.68 is: 28,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,545.97 : 51,711.69 = 18,711.68 : x
  2. Step 2: Convert to fraction form
    34,545.97/51,711.69 = 18,711.68/x
  3. Step 3: Cross multiply
    34,545.97x = 51,711.69 × 18,711.68
  4. Step 4: Simplify right side
    34,545.97x = 967,612,354.52
  5. Step 5: Solve for x
    x = 967,612,354.52/34,545.97
  6. Step 6: Final answer
    x = 28,009.41

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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.