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Finding the Fourth Proportional to 8,959.76, 12,363.24 and 5,234.96

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Solution

The fourth proportional to 8,959.76, 12,363.24 and 5,234.96 is: 7,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.76 : 12,363.24 = 5,234.96 : x
  2. Step 2: Convert to fraction form
    8,959.76/12,363.24 = 5,234.96/x
  3. Step 3: Cross multiply
    8,959.76x = 12,363.24 × 5,234.96
  4. Step 4: Simplify right side
    8,959.76x = 64,721,066.87
  5. Step 5: Solve for x
    x = 64,721,066.87/8,959.76
  6. Step 6: Final answer
    x = 7,223.53

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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.