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Finding the Fourth Proportional to 17,761.03, 26,641.54 and 5,281

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Solution

The fourth proportional to 17,761.03, 26,641.54 and 5,281 is: 7,921.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,761.03 : 26,641.54 = 5,281 : x
  2. Step 2: Convert to fraction form
    17,761.03/26,641.54 = 5,281/x
  3. Step 3: Cross multiply
    17,761.03x = 26,641.54 × 5,281
  4. Step 4: Simplify right side
    17,761.03x = 140,693,972.74
  5. Step 5: Solve for x
    x = 140,693,972.74/17,761.03
  6. Step 6: Final answer
    x = 7,921.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.