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Finding the Fourth Proportional to 16,680.01, 25,020.07 and 13,545.15

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Solution

The fourth proportional to 16,680.01, 25,020.07 and 13,545.15 is: 20,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,680.01 : 25,020.07 = 13,545.15 : x
  2. Step 2: Convert to fraction form
    16,680.01/25,020.07 = 13,545.15/x
  3. Step 3: Cross multiply
    16,680.01x = 25,020.07 × 13,545.15
  4. Step 4: Simplify right side
    16,680.01x = 338,900,601.16
  5. Step 5: Solve for x
    x = 338,900,601.16/16,680.01
  6. Step 6: Final answer
    x = 20,317.77

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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.