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Finding the Fourth Proportional to 8,693.79, 13,041.71 and 2,768.60

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Solution

The fourth proportional to 8,693.79, 13,041.71 and 2,768.60 is: 4,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.79 : 13,041.71 = 2,768.60 : x
  2. Step 2: Convert to fraction form
    8,693.79/13,041.71 = 2,768.60/x
  3. Step 3: Cross multiply
    8,693.79x = 13,041.71 × 2,768.60
  4. Step 4: Simplify right side
    8,693.79x = 36,107,278.31
  5. Step 5: Solve for x
    x = 36,107,278.31/8,693.79
  6. Step 6: Final answer
    x = 4,153.23

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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.