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Finding the Fourth Proportional to 8,565.51, 12,849.65 and 2,641.01

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Solution

The fourth proportional to 8,565.51, 12,849.65 and 2,641.01 is: 3,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.51 : 12,849.65 = 2,641.01 : x
  2. Step 2: Convert to fraction form
    8,565.51/12,849.65 = 2,641.01/x
  3. Step 3: Cross multiply
    8,565.51x = 12,849.65 × 2,641.01
  4. Step 4: Simplify right side
    8,565.51x = 33,936,109.87
  5. Step 5: Solve for x
    x = 33,936,109.87/8,565.51
  6. Step 6: Final answer
    x = 3,961.95

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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.