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Finding the Fourth Proportional to 8,242.89, 12,363.92 and 2,695.51

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Solution

The fourth proportional to 8,242.89, 12,363.92 and 2,695.51 is: 4,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242.89 : 12,363.92 = 2,695.51 : x
  2. Step 2: Convert to fraction form
    8,242.89/12,363.92 = 2,695.51/x
  3. Step 3: Cross multiply
    8,242.89x = 12,363.92 × 2,695.51
  4. Step 4: Simplify right side
    8,242.89x = 33,327,070.00
  5. Step 5: Solve for x
    x = 33,327,070.00/8,242.89
  6. Step 6: Final answer
    x = 4,043.13

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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.