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Finding the Fourth Proportional to 7,199.28, 9,934.65 and 4,054.86

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Solution

The fourth proportional to 7,199.28, 9,934.65 and 4,054.86 is: 5,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.28 : 9,934.65 = 4,054.86 : x
  2. Step 2: Convert to fraction form
    7,199.28/9,934.65 = 4,054.86/x
  3. Step 3: Cross multiply
    7,199.28x = 9,934.65 × 4,054.86
  4. Step 4: Simplify right side
    7,199.28x = 40,283,614.90
  5. Step 5: Solve for x
    x = 40,283,614.90/7,199.28
  6. Step 6: Final answer
    x = 5,595.51

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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.