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Finding the Fourth Proportional to 7,201.86, 10,785.99 and 5,545.26

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Solution

The fourth proportional to 7,201.86, 10,785.99 and 5,545.26 is: 8,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.86 : 10,785.99 = 5,545.26 : x
  2. Step 2: Convert to fraction form
    7,201.86/10,785.99 = 5,545.26/x
  3. Step 3: Cross multiply
    7,201.86x = 10,785.99 × 5,545.26
  4. Step 4: Simplify right side
    7,201.86x = 59,811,118.91
  5. Step 5: Solve for x
    x = 59,811,118.91/7,201.86
  6. Step 6: Final answer
    x = 8,304.95

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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.