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Finding the Fourth Proportional to 7,909.89, 11,866.90 and 2,363.24

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Solution

The fourth proportional to 7,909.89, 11,866.90 and 2,363.24 is: 3,545.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.89 : 11,866.90 = 2,363.24 : x
  2. Step 2: Convert to fraction form
    7,909.89/11,866.90 = 2,363.24/x
  3. Step 3: Cross multiply
    7,909.89x = 11,866.90 × 2,363.24
  4. Step 4: Simplify right side
    7,909.89x = 28,044,332.76
  5. Step 5: Solve for x
    x = 28,044,332.76/7,909.89
  6. Step 6: Final answer
    x = 3,545.48

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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.