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Finding the Fourth Proportional to 4,842.24, 7,264.32 and 1,764.48

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Solution

The fourth proportional to 4,842.24, 7,264.32 and 1,764.48 is: 2,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.24 : 7,264.32 = 1,764.48 : x
  2. Step 2: Convert to fraction form
    4,842.24/7,264.32 = 1,764.48/x
  3. Step 3: Cross multiply
    4,842.24x = 7,264.32 × 1,764.48
  4. Step 4: Simplify right side
    4,842.24x = 12,817,747.35
  5. Step 5: Solve for x
    x = 12,817,747.35/4,842.24
  6. Step 6: Final answer
    x = 2,647.07

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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.