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Finding the Fourth Proportional to 8,673.75, 13,013.55 and 2,751.60

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Solution

The fourth proportional to 8,673.75, 13,013.55 and 2,751.60 is: 4,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.75 : 13,013.55 = 2,751.60 : x
  2. Step 2: Convert to fraction form
    8,673.75/13,013.55 = 2,751.60/x
  3. Step 3: Cross multiply
    8,673.75x = 13,013.55 × 2,751.60
  4. Step 4: Simplify right side
    8,673.75x = 35,808,084.18
  5. Step 5: Solve for x
    x = 35,808,084.18/8,673.75
  6. Step 6: Final answer
    x = 4,128.33

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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.