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Finding the Fourth Proportional to 5,358.34, 7,394.52 and 3,000.52

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Solution

The fourth proportional to 5,358.34, 7,394.52 and 3,000.52 is: 4,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.34 : 7,394.52 = 3,000.52 : x
  2. Step 2: Convert to fraction form
    5,358.34/7,394.52 = 3,000.52/x
  3. Step 3: Cross multiply
    5,358.34x = 7,394.52 × 3,000.52
  4. Step 4: Simplify right side
    5,358.34x = 22,187,405.15
  5. Step 5: Solve for x
    x = 22,187,405.15/5,358.34
  6. Step 6: Final answer
    x = 4,140.72

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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.