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Finding the Fourth Proportional to 11,218.84, 15,480.66 and 6,502.48

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Solution

The fourth proportional to 11,218.84, 15,480.66 and 6,502.48 is: 8,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.84 : 15,480.66 = 6,502.48 : x
  2. Step 2: Convert to fraction form
    11,218.84/15,480.66 = 6,502.48/x
  3. Step 3: Cross multiply
    11,218.84x = 15,480.66 × 6,502.48
  4. Step 4: Simplify right side
    11,218.84x = 100,662,682.04
  5. Step 5: Solve for x
    x = 100,662,682.04/11,218.84
  6. Step 6: Final answer
    x = 8,972.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.