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Finding the Fourth Proportional to 4,559.32, 6,842.28 and 2,919.88

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Solution

The fourth proportional to 4,559.32, 6,842.28 and 2,919.88 is: 4,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,559.32 : 6,842.28 = 2,919.88 : x
  2. Step 2: Convert to fraction form
    4,559.32/6,842.28 = 2,919.88/x
  3. Step 3: Cross multiply
    4,559.32x = 6,842.28 × 2,919.88
  4. Step 4: Simplify right side
    4,559.32x = 19,978,636.53
  5. Step 5: Solve for x
    x = 19,978,636.53/4,559.32
  6. Step 6: Final answer
    x = 4,381.93

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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.