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Finding the Fourth Proportional to 8,713.62, 12,020.13 and 6,056.42

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Solution

The fourth proportional to 8,713.62, 12,020.13 and 6,056.42 is: 8,354.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.62 : 12,020.13 = 6,056.42 : x
  2. Step 2: Convert to fraction form
    8,713.62/12,020.13 = 6,056.42/x
  3. Step 3: Cross multiply
    8,713.62x = 12,020.13 × 6,056.42
  4. Step 4: Simplify right side
    8,713.62x = 72,798,895.63
  5. Step 5: Solve for x
    x = 72,798,895.63/8,713.62
  6. Step 6: Final answer
    x = 8,354.61

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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.