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Finding the Fourth Proportional to 5,279.19, 7,913.31 and 4,344.93

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Solution

The fourth proportional to 5,279.19, 7,913.31 and 4,344.93 is: 6,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.19 : 7,913.31 = 4,344.93 : x
  2. Step 2: Convert to fraction form
    5,279.19/7,913.31 = 4,344.93/x
  3. Step 3: Cross multiply
    5,279.19x = 7,913.31 × 4,344.93
  4. Step 4: Simplify right side
    5,279.19x = 34,382,784.20
  5. Step 5: Solve for x
    x = 34,382,784.20/5,279.19
  6. Step 6: Final answer
    x = 6,512.89

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1.5x scale

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.