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Finding the Fourth Proportional to 2,673.04, 4,009.52 and 725.28

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Solution

The fourth proportional to 2,673.04, 4,009.52 and 725.28 is: 1,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.04 : 4,009.52 = 725.28 : x
  2. Step 2: Convert to fraction form
    2,673.04/4,009.52 = 725.28/x
  3. Step 3: Cross multiply
    2,673.04x = 4,009.52 × 725.28
  4. Step 4: Simplify right side
    2,673.04x = 2,908,024.67
  5. Step 5: Solve for x
    x = 2,908,024.67/2,673.04
  6. Step 6: Final answer
    x = 1,087.91

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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.