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Finding the Fourth Proportional to 5,255.66, 7,255.62 and 4,118.99

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Solution

The fourth proportional to 5,255.66, 7,255.62 and 4,118.99 is: 5,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.66 : 7,255.62 = 4,118.99 : x
  2. Step 2: Convert to fraction form
    5,255.66/7,255.62 = 4,118.99/x
  3. Step 3: Cross multiply
    5,255.66x = 7,255.62 × 4,118.99
  4. Step 4: Simplify right side
    5,255.66x = 29,885,789.95
  5. Step 5: Solve for x
    x = 29,885,789.95/5,255.66
  6. Step 6: Final answer
    x = 5,686.41

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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.