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Finding the Fourth Proportional to 8,599.86, 11,868.29 and 6,471.56

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Solution

The fourth proportional to 8,599.86, 11,868.29 and 6,471.56 is: 8,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.86 : 11,868.29 = 6,471.56 : x
  2. Step 2: Convert to fraction form
    8,599.86/11,868.29 = 6,471.56/x
  3. Step 3: Cross multiply
    8,599.86x = 11,868.29 × 6,471.56
  4. Step 4: Simplify right side
    8,599.86x = 76,806,350.83
  5. Step 5: Solve for x
    x = 76,806,350.83/8,599.86
  6. Step 6: Final answer
    x = 8,931.12

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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.