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Finding the Fourth Proportional to 5,275.44, 7,279.44 and 3,150.96

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Solution

The fourth proportional to 5,275.44, 7,279.44 and 3,150.96 is: 4,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.44 : 7,279.44 = 3,150.96 : x
  2. Step 2: Convert to fraction form
    5,275.44/7,279.44 = 3,150.96/x
  3. Step 3: Cross multiply
    5,275.44x = 7,279.44 × 3,150.96
  4. Step 4: Simplify right side
    5,275.44x = 22,937,224.26
  5. Step 5: Solve for x
    x = 22,937,224.26/5,275.44
  6. Step 6: Final answer
    x = 4,347.93

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1.5x scale

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.