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Finding the Fourth Proportional to 4,888.32, 7,321.86 and 3,008.48

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Solution

The fourth proportional to 4,888.32, 7,321.86 and 3,008.48 is: 4,506.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.32 : 7,321.86 = 3,008.48 : x
  2. Step 2: Convert to fraction form
    4,888.32/7,321.86 = 3,008.48/x
  3. Step 3: Cross multiply
    4,888.32x = 7,321.86 × 3,008.48
  4. Step 4: Simplify right side
    4,888.32x = 22,027,669.37
  5. Step 5: Solve for x
    x = 22,027,669.37/4,888.32
  6. Step 6: Final answer
    x = 4,506.18

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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.