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Finding the Fourth Proportional to 4,500.68, 6,750.72 and 2,646

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Solution

The fourth proportional to 4,500.68, 6,750.72 and 2,646 is: 3,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,500.68 : 6,750.72 = 2,646 : x
  2. Step 2: Convert to fraction form
    4,500.68/6,750.72 = 2,646/x
  3. Step 3: Cross multiply
    4,500.68x = 6,750.72 × 2,646
  4. Step 4: Simplify right side
    4,500.68x = 17,862,405.12
  5. Step 5: Solve for x
    x = 17,862,405.12/4,500.68
  6. Step 6: Final answer
    x = 3,968.82

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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.