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Finding the Fourth Proportional to 6,348.80, 9,510.40 and 4,032

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Solution

The fourth proportional to 6,348.80, 9,510.40 and 4,032 is: 6,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,348.80 : 9,510.40 = 4,032 : x
  2. Step 2: Convert to fraction form
    6,348.80/9,510.40 = 4,032/x
  3. Step 3: Cross multiply
    6,348.80x = 9,510.40 × 4,032
  4. Step 4: Simplify right side
    6,348.80x = 38,345,932.80
  5. Step 5: Solve for x
    x = 38,345,932.80/6,348.80
  6. Step 6: Final answer
    x = 6,039.87

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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.