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Finding the Fourth Proportional to 1,818.13, 2,509.22 and 1,032.43

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Solution

The fourth proportional to 1,818.13, 2,509.22 and 1,032.43 is: 1,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.13 : 2,509.22 = 1,032.43 : x
  2. Step 2: Convert to fraction form
    1,818.13/2,509.22 = 1,032.43/x
  3. Step 3: Cross multiply
    1,818.13x = 2,509.22 × 1,032.43
  4. Step 4: Simplify right side
    1,818.13x = 2,590,594.00
  5. Step 5: Solve for x
    x = 2,590,594.00/1,818.13
  6. Step 6: Final answer
    x = 1,424.87

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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.