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Finding the Fourth Proportional to 15,016.08, 20,725.48 and 8,732.08

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Solution

The fourth proportional to 15,016.08, 20,725.48 and 8,732.08 is: 12,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.08 : 20,725.48 = 8,732.08 : x
  2. Step 2: Convert to fraction form
    15,016.08/20,725.48 = 8,732.08/x
  3. Step 3: Cross multiply
    15,016.08x = 20,725.48 × 8,732.08
  4. Step 4: Simplify right side
    15,016.08x = 180,976,549.40
  5. Step 5: Solve for x
    x = 180,976,549.40/15,016.08
  6. Step 6: Final answer
    x = 12,052.18

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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.