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Finding the Fourth Proportional to 9,479.92, 14,202.85 and 5,582.20

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Solution

The fourth proportional to 9,479.92, 14,202.85 and 5,582.20 is: 8,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.92 : 14,202.85 = 5,582.20 : x
  2. Step 2: Convert to fraction form
    9,479.92/14,202.85 = 5,582.20/x
  3. Step 3: Cross multiply
    9,479.92x = 14,202.85 × 5,582.20
  4. Step 4: Simplify right side
    9,479.92x = 79,283,149.27
  5. Step 5: Solve for x
    x = 79,283,149.27/9,479.92
  6. Step 6: Final answer
    x = 8,363.27

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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.