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Finding the Fourth Proportional to 1,818.55, 2,509.53 and 1,032.58

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Solution

The fourth proportional to 1,818.55, 2,509.53 and 1,032.58 is: 1,424.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.55 : 2,509.53 = 1,032.58 : x
  2. Step 2: Convert to fraction form
    1,818.55/2,509.53 = 1,032.58/x
  3. Step 3: Cross multiply
    1,818.55x = 2,509.53 × 1,032.58
  4. Step 4: Simplify right side
    1,818.55x = 2,591,290.49
  5. Step 5: Solve for x
    x = 2,591,290.49/1,818.55
  6. Step 6: Final answer
    x = 1,424.92

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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.