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Finding the Fourth Proportional to 10,863.32, 14,982.44 and 9,132.08

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Solution

The fourth proportional to 10,863.32, 14,982.44 and 9,132.08 is: 12,594.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.32 : 14,982.44 = 9,132.08 : x
  2. Step 2: Convert to fraction form
    10,863.32/14,982.44 = 9,132.08/x
  3. Step 3: Cross multiply
    10,863.32x = 14,982.44 × 9,132.08
  4. Step 4: Simplify right side
    10,863.32x = 136,820,840.68
  5. Step 5: Solve for x
    x = 136,820,840.68/10,863.32
  6. Step 6: Final answer
    x = 12,594.75

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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.