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Finding the Fourth Proportional to 18,295.31, 25,250.30 and 13,282.29

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Solution

The fourth proportional to 18,295.31, 25,250.30 and 13,282.29 is: 18,331.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.31 : 25,250.30 = 13,282.29 : x
  2. Step 2: Convert to fraction form
    18,295.31/25,250.30 = 13,282.29/x
  3. Step 3: Cross multiply
    18,295.31x = 25,250.30 × 13,282.29
  4. Step 4: Simplify right side
    18,295.31x = 335,381,740.78
  5. Step 5: Solve for x
    x = 335,381,740.78/18,295.31
  6. Step 6: Final answer
    x = 18,331.57

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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.