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Finding the Fourth Proportional to 11,241.68, 16,862.54 and 2,921.00

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Solution

The fourth proportional to 11,241.68, 16,862.54 and 2,921.00 is: 4,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.68 : 16,862.54 = 2,921.00 : x
  2. Step 2: Convert to fraction form
    11,241.68/16,862.54 = 2,921.00/x
  3. Step 3: Cross multiply
    11,241.68x = 16,862.54 × 2,921.00
  4. Step 4: Simplify right side
    11,241.68x = 49,255,506.89
  5. Step 5: Solve for x
    x = 49,255,506.89/11,241.68
  6. Step 6: Final answer
    x = 4,381.51

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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.