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Finding the Fourth Proportional to 4,991.44, 6,888.50 and 2,867.63

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Solution

The fourth proportional to 4,991.44, 6,888.50 and 2,867.63 is: 3,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.44 : 6,888.50 = 2,867.63 : x
  2. Step 2: Convert to fraction form
    4,991.44/6,888.50 = 2,867.63/x
  3. Step 3: Cross multiply
    4,991.44x = 6,888.50 × 2,867.63
  4. Step 4: Simplify right side
    4,991.44x = 19,753,669.26
  5. Step 5: Solve for x
    x = 19,753,669.26/4,991.44
  6. Step 6: Final answer
    x = 3,957.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.