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Finding the Fourth Proportional to 2,473.63, 3,711 and 807.76

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Solution

The fourth proportional to 2,473.63, 3,711 and 807.76 is: 1,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,473.63 : 3,711 = 807.76 : x
  2. Step 2: Convert to fraction form
    2,473.63/3,711 = 807.76/x
  3. Step 3: Cross multiply
    2,473.63x = 3,711 × 807.76
  4. Step 4: Simplify right side
    2,473.63x = 2,997,597.36
  5. Step 5: Solve for x
    x = 2,997,597.36/2,473.63
  6. Step 6: Final answer
    x = 1,211.82

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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.