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Finding the Fourth Proportional to 8,713.12, 12,017.52 and 6,059.20

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Solution

The fourth proportional to 8,713.12, 12,017.52 and 6,059.20 is: 8,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.12 : 12,017.52 = 6,059.20 : x
  2. Step 2: Convert to fraction form
    8,713.12/12,017.52 = 6,059.20/x
  3. Step 3: Cross multiply
    8,713.12x = 12,017.52 × 6,059.20
  4. Step 4: Simplify right side
    8,713.12x = 72,816,557.18
  5. Step 5: Solve for x
    x = 72,816,557.18/8,713.12
  6. Step 6: Final answer
    x = 8,357.12

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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.