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Finding the Fourth Proportional to 2,259.51, 3,387.30 and 872.52

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Solution

The fourth proportional to 2,259.51, 3,387.30 and 872.52 is: 1,308.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.51 : 3,387.30 = 872.52 : x
  2. Step 2: Convert to fraction form
    2,259.51/3,387.30 = 872.52/x
  3. Step 3: Cross multiply
    2,259.51x = 3,387.30 × 872.52
  4. Step 4: Simplify right side
    2,259.51x = 2,955,487.00
  5. Step 5: Solve for x
    x = 2,955,487.00/2,259.51
  6. Step 6: Final answer
    x = 1,308.02

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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.