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Finding the Fourth Proportional to 8,588.70, 12,862.35 and 4,881.87

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Solution

The fourth proportional to 8,588.70, 12,862.35 and 4,881.87 is: 7,311.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.70 : 12,862.35 = 4,881.87 : x
  2. Step 2: Convert to fraction form
    8,588.70/12,862.35 = 4,881.87/x
  3. Step 3: Cross multiply
    8,588.70x = 12,862.35 × 4,881.87
  4. Step 4: Simplify right side
    8,588.70x = 62,792,320.59
  5. Step 5: Solve for x
    x = 62,792,320.59/8,588.70
  6. Step 6: Final answer
    x = 7,311.04

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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.