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Finding the Fourth Proportional to 2,166.16, 3,248.49 and 704.96

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Solution

The fourth proportional to 2,166.16, 3,248.49 and 704.96 is: 1,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.16 : 3,248.49 = 704.96 : x
  2. Step 2: Convert to fraction form
    2,166.16/3,248.49 = 704.96/x
  3. Step 3: Cross multiply
    2,166.16x = 3,248.49 × 704.96
  4. Step 4: Simplify right side
    2,166.16x = 2,290,055.51
  5. Step 5: Solve for x
    x = 2,290,055.51/2,166.16
  6. Step 6: Final answer
    x = 1,057.20

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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.