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Finding the Fourth Proportional to 8,792.75, 13,187.64 and 2,869.76

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Solution

The fourth proportional to 8,792.75, 13,187.64 and 2,869.76 is: 4,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.75 : 13,187.64 = 2,869.76 : x
  2. Step 2: Convert to fraction form
    8,792.75/13,187.64 = 2,869.76/x
  3. Step 3: Cross multiply
    8,792.75x = 13,187.64 × 2,869.76
  4. Step 4: Simplify right side
    8,792.75x = 37,845,405.50
  5. Step 5: Solve for x
    x = 37,845,405.50/8,792.75
  6. Step 6: Final answer
    x = 4,304.16

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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.