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Finding the Fourth Proportional to 7,008.32, 9,658.18 and 5,015.42

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Solution

The fourth proportional to 7,008.32, 9,658.18 and 5,015.42 is: 6,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.32 : 9,658.18 = 5,015.42 : x
  2. Step 2: Convert to fraction form
    7,008.32/9,658.18 = 5,015.42/x
  3. Step 3: Cross multiply
    7,008.32x = 9,658.18 × 5,015.42
  4. Step 4: Simplify right side
    7,008.32x = 48,439,829.14
  5. Step 5: Solve for x
    x = 48,439,829.14/7,008.32
  6. Step 6: Final answer
    x = 6,911.76

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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.