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Finding the Fourth Proportional to 9,330.59, 12,872.01 and 6,143.04

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Solution

The fourth proportional to 9,330.59, 12,872.01 and 6,143.04 is: 8,474.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.59 : 12,872.01 = 6,143.04 : x
  2. Step 2: Convert to fraction form
    9,330.59/12,872.01 = 6,143.04/x
  3. Step 3: Cross multiply
    9,330.59x = 12,872.01 × 6,143.04
  4. Step 4: Simplify right side
    9,330.59x = 79,073,295.35
  5. Step 5: Solve for x
    x = 79,073,295.35/9,330.59
  6. Step 6: Final answer
    x = 8,474.63

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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.