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Finding the Fourth Proportional to 1,884.74, 2,601.18 and 1,139.00

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Solution

The fourth proportional to 1,884.74, 2,601.18 and 1,139.00 is: 1,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.74 : 2,601.18 = 1,139.00 : x
  2. Step 2: Convert to fraction form
    1,884.74/2,601.18 = 1,139.00/x
  3. Step 3: Cross multiply
    1,884.74x = 2,601.18 × 1,139.00
  4. Step 4: Simplify right side
    1,884.74x = 2,962,731.01
  5. Step 5: Solve for x
    x = 2,962,731.01/1,884.74
  6. Step 6: Final answer
    x = 1,571.96

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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.