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Finding the Fourth Proportional to 7,693.88, 10,617.55 and 4,381.88

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Solution

The fourth proportional to 7,693.88, 10,617.55 and 4,381.88 is: 6,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.88 : 10,617.55 = 4,381.88 : x
  2. Step 2: Convert to fraction form
    7,693.88/10,617.55 = 4,381.88/x
  3. Step 3: Cross multiply
    7,693.88x = 10,617.55 × 4,381.88
  4. Step 4: Simplify right side
    7,693.88x = 46,524,765.95
  5. Step 5: Solve for x
    x = 46,524,765.95/7,693.88
  6. Step 6: Final answer
    x = 6,046.99

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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.