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Finding the Fourth Proportional to 5,306.40, 7,322.84 and 2,948.48

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Solution

The fourth proportional to 5,306.40, 7,322.84 and 2,948.48 is: 4,068.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.40 : 7,322.84 = 2,948.48 : x
  2. Step 2: Convert to fraction form
    5,306.40/7,322.84 = 2,948.48/x
  3. Step 3: Cross multiply
    5,306.40x = 7,322.84 × 2,948.48
  4. Step 4: Simplify right side
    5,306.40x = 21,591,247.28
  5. Step 5: Solve for x
    x = 21,591,247.28/5,306.40
  6. Step 6: Final answer
    x = 4,068.91

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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.