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Finding the Fourth Proportional to 5,008.32, 6,912.24 and 2,913.12

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Solution

The fourth proportional to 5,008.32, 6,912.24 and 2,913.12 is: 4,020.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.32 : 6,912.24 = 2,913.12 : x
  2. Step 2: Convert to fraction form
    5,008.32/6,912.24 = 2,913.12/x
  3. Step 3: Cross multiply
    5,008.32x = 6,912.24 × 2,913.12
  4. Step 4: Simplify right side
    5,008.32x = 20,136,184.59
  5. Step 5: Solve for x
    x = 20,136,184.59/5,008.32
  6. Step 6: Final answer
    x = 4,020.55

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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.