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Finding the Fourth Proportional to 5,329.52, 7,348.20 and 4,382

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Solution

The fourth proportional to 5,329.52, 7,348.20 and 4,382 is: 6,041.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.52 : 7,348.20 = 4,382 : x
  2. Step 2: Convert to fraction form
    5,329.52/7,348.20 = 4,382/x
  3. Step 3: Cross multiply
    5,329.52x = 7,348.20 × 4,382
  4. Step 4: Simplify right side
    5,329.52x = 32,199,812.40
  5. Step 5: Solve for x
    x = 32,199,812.40/5,329.52
  6. Step 6: Final answer
    x = 6,041.78

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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.