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Finding the Fourth Proportional to 2,892.76, 3,991.99 and 1,566.46

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Solution

The fourth proportional to 2,892.76, 3,991.99 and 1,566.46 is: 2,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.76 : 3,991.99 = 1,566.46 : x
  2. Step 2: Convert to fraction form
    2,892.76/3,991.99 = 1,566.46/x
  3. Step 3: Cross multiply
    2,892.76x = 3,991.99 × 1,566.46
  4. Step 4: Simplify right side
    2,892.76x = 6,253,292.66
  5. Step 5: Solve for x
    x = 6,253,292.66/2,892.76
  6. Step 6: Final answer
    x = 2,161.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.