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Finding the Fourth Proportional to 5,763.60, 8,642.16 and 3,264.48

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Solution

The fourth proportional to 5,763.60, 8,642.16 and 3,264.48 is: 4,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,763.60 : 8,642.16 = 3,264.48 : x
  2. Step 2: Convert to fraction form
    5,763.60/8,642.16 = 3,264.48/x
  3. Step 3: Cross multiply
    5,763.60x = 8,642.16 × 3,264.48
  4. Step 4: Simplify right side
    5,763.60x = 28,212,158.48
  5. Step 5: Solve for x
    x = 28,212,158.48/5,763.60
  6. Step 6: Final answer
    x = 4,894.88

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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.