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Finding the Fourth Proportional to 5,689.17, 8,529.86 and 2,913.57

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Solution

The fourth proportional to 5,689.17, 8,529.86 and 2,913.57 is: 4,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.17 : 8,529.86 = 2,913.57 : x
  2. Step 2: Convert to fraction form
    5,689.17/8,529.86 = 2,913.57/x
  3. Step 3: Cross multiply
    5,689.17x = 8,529.86 × 2,913.57
  4. Step 4: Simplify right side
    5,689.17x = 24,852,351.48
  5. Step 5: Solve for x
    x = 24,852,351.48/5,689.17
  6. Step 6: Final answer
    x = 4,368.36

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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.