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Finding the Fourth Proportional to 8,330.77, 11,500.19 and 5,499.82

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Solution

The fourth proportional to 8,330.77, 11,500.19 and 5,499.82 is: 7,592.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.77 : 11,500.19 = 5,499.82 : x
  2. Step 2: Convert to fraction form
    8,330.77/11,500.19 = 5,499.82/x
  3. Step 3: Cross multiply
    8,330.77x = 11,500.19 × 5,499.82
  4. Step 4: Simplify right side
    8,330.77x = 63,248,974.97
  5. Step 5: Solve for x
    x = 63,248,974.97/8,330.77
  6. Step 6: Final answer
    x = 7,592.21

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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.