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Finding the Fourth Proportional to 2,040.84, 3,059.16 and 807.75

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Solution

The fourth proportional to 2,040.84, 3,059.16 and 807.75 is: 1,210.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.84 : 3,059.16 = 807.75 : x
  2. Step 2: Convert to fraction form
    2,040.84/3,059.16 = 807.75/x
  3. Step 3: Cross multiply
    2,040.84x = 3,059.16 × 807.75
  4. Step 4: Simplify right side
    2,040.84x = 2,471,036.49
  5. Step 5: Solve for x
    x = 2,471,036.49/2,040.84
  6. Step 6: Final answer
    x = 1,210.79

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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.