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Finding the Fourth Proportional to 4,892.30, 7,343.92 and 1,972.66

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Solution

The fourth proportional to 4,892.30, 7,343.92 and 1,972.66 is: 2,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.30 : 7,343.92 = 1,972.66 : x
  2. Step 2: Convert to fraction form
    4,892.30/7,343.92 = 1,972.66/x
  3. Step 3: Cross multiply
    4,892.30x = 7,343.92 × 1,972.66
  4. Step 4: Simplify right side
    4,892.30x = 14,487,057.23
  5. Step 5: Solve for x
    x = 14,487,057.23/4,892.30
  6. Step 6: Final answer
    x = 2,961.20

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1.5x scale

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.