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Finding the Fourth Proportional to 7,379.34, 11,073.48 and 4,748.52

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Solution

The fourth proportional to 7,379.34, 11,073.48 and 4,748.52 is: 7,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.34 : 11,073.48 = 4,748.52 : x
  2. Step 2: Convert to fraction form
    7,379.34/11,073.48 = 4,748.52/x
  3. Step 3: Cross multiply
    7,379.34x = 11,073.48 × 4,748.52
  4. Step 4: Simplify right side
    7,379.34x = 52,582,641.25
  5. Step 5: Solve for x
    x = 52,582,641.25/7,379.34
  6. Step 6: Final answer
    x = 7,125.66

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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.