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Finding the Fourth Proportional to 2,955.85, 4,434.42 and 876.02

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Solution

The fourth proportional to 2,955.85, 4,434.42 and 876.02 is: 1,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.85 : 4,434.42 = 876.02 : x
  2. Step 2: Convert to fraction form
    2,955.85/4,434.42 = 876.02/x
  3. Step 3: Cross multiply
    2,955.85x = 4,434.42 × 876.02
  4. Step 4: Simplify right side
    2,955.85x = 3,884,618.44
  5. Step 5: Solve for x
    x = 3,884,618.44/2,955.85
  6. Step 6: Final answer
    x = 1,314.21

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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.