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Finding the Fourth Proportional to 5,565.54, 7,677.27 and 3,972.54

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Solution

The fourth proportional to 5,565.54, 7,677.27 and 3,972.54 is: 5,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.54 : 7,677.27 = 3,972.54 : x
  2. Step 2: Convert to fraction form
    5,565.54/7,677.27 = 3,972.54/x
  3. Step 3: Cross multiply
    5,565.54x = 7,677.27 × 3,972.54
  4. Step 4: Simplify right side
    5,565.54x = 30,498,262.17
  5. Step 5: Solve for x
    x = 30,498,262.17/5,565.54
  6. Step 6: Final answer
    x = 5,479.84

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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.