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Finding the Fourth Proportional to 22,508.88, 31,062.26 and 12,572.88

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Solution

The fourth proportional to 22,508.88, 31,062.26 and 12,572.88 is: 17,350.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,508.88 : 31,062.26 = 12,572.88 : x
  2. Step 2: Convert to fraction form
    22,508.88/31,062.26 = 12,572.88/x
  3. Step 3: Cross multiply
    22,508.88x = 31,062.26 × 12,572.88
  4. Step 4: Simplify right side
    22,508.88x = 390,542,067.51
  5. Step 5: Solve for x
    x = 390,542,067.51/22,508.88
  6. Step 6: Final answer
    x = 17,350.58

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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.