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Finding the Fourth Proportional to 2,946.67, 4,420.62 and 2,652.59

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Solution

The fourth proportional to 2,946.67, 4,420.62 and 2,652.59 is: 3,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.67 : 4,420.62 = 2,652.59 : x
  2. Step 2: Convert to fraction form
    2,946.67/4,420.62 = 2,652.59/x
  3. Step 3: Cross multiply
    2,946.67x = 4,420.62 × 2,652.59
  4. Step 4: Simplify right side
    2,946.67x = 11,726,103.46
  5. Step 5: Solve for x
    x = 11,726,103.46/2,946.67
  6. Step 6: Final answer
    x = 3,979.45

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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.