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Finding the Fourth Proportional to 5,908.72, 8,868.54 and 2,989.07

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Solution

The fourth proportional to 5,908.72, 8,868.54 and 2,989.07 is: 4,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,908.72 : 8,868.54 = 2,989.07 : x
  2. Step 2: Convert to fraction form
    5,908.72/8,868.54 = 2,989.07/x
  3. Step 3: Cross multiply
    5,908.72x = 8,868.54 × 2,989.07
  4. Step 4: Simplify right side
    5,908.72x = 26,508,686.86
  5. Step 5: Solve for x
    x = 26,508,686.86/5,908.72
  6. Step 6: Final answer
    x = 4,486.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.