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Finding the Fourth Proportional to 5,617.58, 7,755.03 and 3,381.17

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Solution

The fourth proportional to 5,617.58, 7,755.03 and 3,381.17 is: 4,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.58 : 7,755.03 = 3,381.17 : x
  2. Step 2: Convert to fraction form
    5,617.58/7,755.03 = 3,381.17/x
  3. Step 3: Cross multiply
    5,617.58x = 7,755.03 × 3,381.17
  4. Step 4: Simplify right side
    5,617.58x = 26,221,036.01
  5. Step 5: Solve for x
    x = 26,221,036.01/5,617.58
  6. Step 6: Final answer
    x = 4,667.68

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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.