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Finding the Fourth Proportional to 1,833.77, 2,749.11 and 1,247.13

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Solution

The fourth proportional to 1,833.77, 2,749.11 and 1,247.13 is: 1,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,833.77 : 2,749.11 = 1,247.13 : x
  2. Step 2: Convert to fraction form
    1,833.77/2,749.11 = 1,247.13/x
  3. Step 3: Cross multiply
    1,833.77x = 2,749.11 × 1,247.13
  4. Step 4: Simplify right side
    1,833.77x = 3,428,499.89
  5. Step 5: Solve for x
    x = 3,428,499.89/1,833.77
  6. Step 6: Final answer
    x = 1,869.64

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1.5x scale

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.