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Finding the Fourth Proportional to 7,279.23, 10,074.21 and 7,104.52

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Solution

The fourth proportional to 7,279.23, 10,074.21 and 7,104.52 is: 9,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.23 : 10,074.21 = 7,104.52 : x
  2. Step 2: Convert to fraction form
    7,279.23/10,074.21 = 7,104.52/x
  3. Step 3: Cross multiply
    7,279.23x = 10,074.21 × 7,104.52
  4. Step 4: Simplify right side
    7,279.23x = 71,572,426.43
  5. Step 5: Solve for x
    x = 71,572,426.43/7,279.23
  6. Step 6: Final answer
    x = 9,832.42

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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.