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Finding the Fourth Proportional to 1,566.04, 2,161 and 902.92

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Solution

The fourth proportional to 1,566.04, 2,161 and 902.92 is: 1,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.04 : 2,161 = 902.92 : x
  2. Step 2: Convert to fraction form
    1,566.04/2,161 = 902.92/x
  3. Step 3: Cross multiply
    1,566.04x = 2,161 × 902.92
  4. Step 4: Simplify right side
    1,566.04x = 1,951,210.12
  5. Step 5: Solve for x
    x = 1,951,210.12/1,566.04
  6. Step 6: Final answer
    x = 1,245.95

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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.