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Finding the Fourth Proportional to 5,518.88, 7,616.05 and 3,034.88

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Solution

The fourth proportional to 5,518.88, 7,616.05 and 3,034.88 is: 4,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.88 : 7,616.05 = 3,034.88 : x
  2. Step 2: Convert to fraction form
    5,518.88/7,616.05 = 3,034.88/x
  3. Step 3: Cross multiply
    5,518.88x = 7,616.05 × 3,034.88
  4. Step 4: Simplify right side
    5,518.88x = 23,113,759.74
  5. Step 5: Solve for x
    x = 23,113,759.74/5,518.88
  6. Step 6: Final answer
    x = 4,188.13

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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.