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Finding the Fourth Proportional to 8,545.86, 12,824.51 and 2,999.23

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Solution

The fourth proportional to 8,545.86, 12,824.51 and 2,999.23 is: 4,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.86 : 12,824.51 = 2,999.23 : x
  2. Step 2: Convert to fraction form
    8,545.86/12,824.51 = 2,999.23/x
  3. Step 3: Cross multiply
    8,545.86x = 12,824.51 × 2,999.23
  4. Step 4: Simplify right side
    8,545.86x = 38,463,655.13
  5. Step 5: Solve for x
    x = 38,463,655.13/8,545.86
  6. Step 6: Final answer
    x = 4,500.85

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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.