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Finding the Fourth Proportional to 2,074.57, 3,113.17 and 841.99

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Solution

The fourth proportional to 2,074.57, 3,113.17 and 841.99 is: 1,263.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.57 : 3,113.17 = 841.99 : x
  2. Step 2: Convert to fraction form
    2,074.57/3,113.17 = 841.99/x
  3. Step 3: Cross multiply
    2,074.57x = 3,113.17 × 841.99
  4. Step 4: Simplify right side
    2,074.57x = 2,621,258.01
  5. Step 5: Solve for x
    x = 2,621,258.01/2,074.57
  6. Step 6: Final answer
    x = 1,263.52

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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.