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Finding the Fourth Proportional to 31,959.18, 44,103.06 and 18,531.68

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Solution

The fourth proportional to 31,959.18, 44,103.06 and 18,531.68 is: 25,573.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,959.18 : 44,103.06 = 18,531.68 : x
  2. Step 2: Convert to fraction form
    31,959.18/44,103.06 = 18,531.68/x
  3. Step 3: Cross multiply
    31,959.18x = 44,103.06 × 18,531.68
  4. Step 4: Simplify right side
    31,959.18x = 817,303,574.43
  5. Step 5: Solve for x
    x = 817,303,574.43/31,959.18
  6. Step 6: Final answer
    x = 25,573.36

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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.