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Finding the Fourth Proportional to 17,881.96, 26,983.75 and 17,264.20

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Solution

The fourth proportional to 17,881.96, 26,983.75 and 17,264.20 is: 26,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,881.96 : 26,983.75 = 17,264.20 : x
  2. Step 2: Convert to fraction form
    17,881.96/26,983.75 = 17,264.20/x
  3. Step 3: Cross multiply
    17,881.96x = 26,983.75 × 17,264.20
  4. Step 4: Simplify right side
    17,881.96x = 465,852,856.75
  5. Step 5: Solve for x
    x = 465,852,856.75/17,881.96
  6. Step 6: Final answer
    x = 26,051.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.