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Finding the Fourth Proportional to 7,242.08, 9,994.20 and 4,098.92

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Solution

The fourth proportional to 7,242.08, 9,994.20 and 4,098.92 is: 5,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.08 : 9,994.20 = 4,098.92 : x
  2. Step 2: Convert to fraction form
    7,242.08/9,994.20 = 4,098.92/x
  3. Step 3: Cross multiply
    7,242.08x = 9,994.20 × 4,098.92
  4. Step 4: Simplify right side
    7,242.08x = 40,965,426.26
  5. Step 5: Solve for x
    x = 40,965,426.26/7,242.08
  6. Step 6: Final answer
    x = 5,656.58

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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.