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Finding the Fourth Proportional to 2,334.90, 3,501.54 and 691.01

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Solution

The fourth proportional to 2,334.90, 3,501.54 and 691.01 is: 1,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.90 : 3,501.54 = 691.01 : x
  2. Step 2: Convert to fraction form
    2,334.90/3,501.54 = 691.01/x
  3. Step 3: Cross multiply
    2,334.90x = 3,501.54 × 691.01
  4. Step 4: Simplify right side
    2,334.90x = 2,419,581.65
  5. Step 5: Solve for x
    x = 2,419,581.65/2,334.90
  6. Step 6: Final answer
    x = 1,036.27

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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.