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Finding the Fourth Proportional to 5,368.24, 8,052.80 and 1,472.72

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Solution

The fourth proportional to 5,368.24, 8,052.80 and 1,472.72 is: 2,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.24 : 8,052.80 = 1,472.72 : x
  2. Step 2: Convert to fraction form
    5,368.24/8,052.80 = 1,472.72/x
  3. Step 3: Cross multiply
    5,368.24x = 8,052.80 × 1,472.72
  4. Step 4: Simplify right side
    5,368.24x = 11,859,519.62
  5. Step 5: Solve for x
    x = 11,859,519.62/5,368.24
  6. Step 6: Final answer
    x = 2,209.20

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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.