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Finding the Fourth Proportional to 8,565.80, 12,848.54 and 2,722.32

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Solution

The fourth proportional to 8,565.80, 12,848.54 and 2,722.32 is: 4,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.80 : 12,848.54 = 2,722.32 : x
  2. Step 2: Convert to fraction form
    8,565.80/12,848.54 = 2,722.32/x
  3. Step 3: Cross multiply
    8,565.80x = 12,848.54 × 2,722.32
  4. Step 4: Simplify right side
    8,565.80x = 34,977,837.41
  5. Step 5: Solve for x
    x = 34,977,837.41/8,565.80
  6. Step 6: Final answer
    x = 4,083.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.