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Finding the Fourth Proportional to 25,706.70, 38,545.72 and 7,932.31

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Solution

The fourth proportional to 25,706.70, 38,545.72 and 7,932.31 is: 11,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,706.70 : 38,545.72 = 7,932.31 : x
  2. Step 2: Convert to fraction form
    25,706.70/38,545.72 = 7,932.31/x
  3. Step 3: Cross multiply
    25,706.70x = 38,545.72 × 7,932.31
  4. Step 4: Simplify right side
    25,706.70x = 305,756,745.46
  5. Step 5: Solve for x
    x = 305,756,745.46/25,706.70
  6. Step 6: Final answer
    x = 11,894.05

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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.