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Finding the Fourth Proportional to 5,298.62, 7,909.18 and 4,913.12

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Solution

The fourth proportional to 5,298.62, 7,909.18 and 4,913.12 is: 7,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.62 : 7,909.18 = 4,913.12 : x
  2. Step 2: Convert to fraction form
    5,298.62/7,909.18 = 4,913.12/x
  3. Step 3: Cross multiply
    5,298.62x = 7,909.18 × 4,913.12
  4. Step 4: Simplify right side
    5,298.62x = 38,858,757.93
  5. Step 5: Solve for x
    x = 38,858,757.93/5,298.62
  6. Step 6: Final answer
    x = 7,333.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.