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Finding the Fourth Proportional to 4,693.44, 7,040.16 and 2,642.88

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Solution

The fourth proportional to 4,693.44, 7,040.16 and 2,642.88 is: 3,964.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,693.44 : 7,040.16 = 2,642.88 : x
  2. Step 2: Convert to fraction form
    4,693.44/7,040.16 = 2,642.88/x
  3. Step 3: Cross multiply
    4,693.44x = 7,040.16 × 2,642.88
  4. Step 4: Simplify right side
    4,693.44x = 18,606,298.06
  5. Step 5: Solve for x
    x = 18,606,298.06/4,693.44
  6. Step 6: Final answer
    x = 3,964.32

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Similar ratio
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1.5x scale

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.