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Finding the Fourth Proportional to 2,341.67, 3,512.70 and 955.76

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Solution

The fourth proportional to 2,341.67, 3,512.70 and 955.76 is: 1,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.67 : 3,512.70 = 955.76 : x
  2. Step 2: Convert to fraction form
    2,341.67/3,512.70 = 955.76/x
  3. Step 3: Cross multiply
    2,341.67x = 3,512.70 × 955.76
  4. Step 4: Simplify right side
    2,341.67x = 3,357,280.59
  5. Step 5: Solve for x
    x = 3,357,280.59/2,341.67
  6. Step 6: Final answer
    x = 1,433.72

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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.