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Finding the Fourth Proportional to 7,159.22, 9,879.82 and 5,363.52

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Solution

The fourth proportional to 7,159.22, 9,879.82 and 5,363.52 is: 7,401.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.22 : 9,879.82 = 5,363.52 : x
  2. Step 2: Convert to fraction form
    7,159.22/9,879.82 = 5,363.52/x
  3. Step 3: Cross multiply
    7,159.22x = 9,879.82 × 5,363.52
  4. Step 4: Simplify right side
    7,159.22x = 52,990,612.17
  5. Step 5: Solve for x
    x = 52,990,612.17/7,159.22
  6. Step 6: Final answer
    x = 7,401.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.