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Finding the Fourth Proportional to 18,301.32, 25,260 and 10,348.20

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Solution

The fourth proportional to 18,301.32, 25,260 and 10,348.20 is: 14,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.32 : 25,260 = 10,348.20 : x
  2. Step 2: Convert to fraction form
    18,301.32/25,260 = 10,348.20/x
  3. Step 3: Cross multiply
    18,301.32x = 25,260 × 10,348.20
  4. Step 4: Simplify right side
    18,301.32x = 261,395,532.00
  5. Step 5: Solve for x
    x = 261,395,532.00/18,301.32
  6. Step 6: Final answer
    x = 14,282.88

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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.