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Finding the Fourth Proportional to 5,007.88, 6,910.68 and 2,912.01

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Solution

The fourth proportional to 5,007.88, 6,910.68 and 2,912.01 is: 4,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.88 : 6,910.68 = 2,912.01 : x
  2. Step 2: Convert to fraction form
    5,007.88/6,910.68 = 2,912.01/x
  3. Step 3: Cross multiply
    5,007.88x = 6,910.68 × 2,912.01
  4. Step 4: Simplify right side
    5,007.88x = 20,123,969.27
  5. Step 5: Solve for x
    x = 20,123,969.27/5,007.88
  6. Step 6: Final answer
    x = 4,018.46

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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.