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Finding the Fourth Proportional to 9,672.48, 13,348.80 and 5,481

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Solution

The fourth proportional to 9,672.48, 13,348.80 and 5,481 is: 7,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,672.48 : 13,348.80 = 5,481 : x
  2. Step 2: Convert to fraction form
    9,672.48/13,348.80 = 5,481/x
  3. Step 3: Cross multiply
    9,672.48x = 13,348.80 × 5,481
  4. Step 4: Simplify right side
    9,672.48x = 73,164,772.80
  5. Step 5: Solve for x
    x = 73,164,772.80/9,672.48
  6. Step 6: Final answer
    x = 7,564.22

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Why These Related Problems?

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