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Finding the Fourth Proportional to 3,648.88, 5,023.88 and 3,316.28

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Solution

The fourth proportional to 3,648.88, 5,023.88 and 3,316.28 is: 4,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.88 : 5,023.88 = 3,316.28 : x
  2. Step 2: Convert to fraction form
    3,648.88/5,023.88 = 3,316.28/x
  3. Step 3: Cross multiply
    3,648.88x = 5,023.88 × 3,316.28
  4. Step 4: Simplify right side
    3,648.88x = 16,660,592.77
  5. Step 5: Solve for x
    x = 16,660,592.77/3,648.88
  6. Step 6: Final answer
    x = 4,565.95

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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.