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Finding the Fourth Proportional to 31,551.92, 43,540.08 and 17,404.40

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Solution

The fourth proportional to 31,551.92, 43,540.08 and 17,404.40 is: 24,017.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.92 : 43,540.08 = 17,404.40 : x
  2. Step 2: Convert to fraction form
    31,551.92/43,540.08 = 17,404.40/x
  3. Step 3: Cross multiply
    31,551.92x = 43,540.08 × 17,404.40
  4. Step 4: Simplify right side
    31,551.92x = 757,788,968.35
  5. Step 5: Solve for x
    x = 757,788,968.35/31,551.92
  6. Step 6: Final answer
    x = 24,017.21

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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.