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Finding the Fourth Proportional to 18,354.60, 25,293.06 and 13,034.52

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Solution

The fourth proportional to 18,354.60, 25,293.06 and 13,034.52 is: 17,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.60 : 25,293.06 = 13,034.52 : x
  2. Step 2: Convert to fraction form
    18,354.60/25,293.06 = 13,034.52/x
  3. Step 3: Cross multiply
    18,354.60x = 25,293.06 × 13,034.52
  4. Step 4: Simplify right side
    18,354.60x = 329,682,896.43
  5. Step 5: Solve for x
    x = 329,682,896.43/18,354.60
  6. Step 6: Final answer
    x = 17,961.87

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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.