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Finding the Fourth Proportional to 31,635.84, 43,656.84 and 17,488.56

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Solution

The fourth proportional to 31,635.84, 43,656.84 and 17,488.56 is: 24,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,635.84 : 43,656.84 = 17,488.56 : x
  2. Step 2: Convert to fraction form
    31,635.84/43,656.84 = 17,488.56/x
  3. Step 3: Cross multiply
    31,635.84x = 43,656.84 × 17,488.56
  4. Step 4: Simplify right side
    31,635.84x = 763,495,265.75
  5. Step 5: Solve for x
    x = 763,495,265.75/31,635.84
  6. Step 6: Final answer
    x = 24,133.87

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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.