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Finding the Fourth Proportional to 8,583.60, 12,877.82 and 5,076.70

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Solution

The fourth proportional to 8,583.60, 12,877.82 and 5,076.70 is: 7,616.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,583.60 : 12,877.82 = 5,076.70 : x
  2. Step 2: Convert to fraction form
    8,583.60/12,877.82 = 5,076.70/x
  3. Step 3: Cross multiply
    8,583.60x = 12,877.82 × 5,076.70
  4. Step 4: Simplify right side
    8,583.60x = 65,376,828.79
  5. Step 5: Solve for x
    x = 65,376,828.79/8,583.60
  6. Step 6: Final answer
    x = 7,616.48

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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.