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Finding the Fourth Proportional to 8,868.70, 13,292.67 and 5,702.10

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Solution

The fourth proportional to 8,868.70, 13,292.67 and 5,702.10 is: 8,546.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.70 : 13,292.67 = 5,702.10 : x
  2. Step 2: Convert to fraction form
    8,868.70/13,292.67 = 5,702.10/x
  3. Step 3: Cross multiply
    8,868.70x = 13,292.67 × 5,702.10
  4. Step 4: Simplify right side
    8,868.70x = 75,796,133.61
  5. Step 5: Solve for x
    x = 75,796,133.61/8,868.70
  6. Step 6: Final answer
    x = 8,546.48

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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.