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Finding the Fourth Proportional to 1,854.64, 2,559.24 and 1,155.76

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Solution

The fourth proportional to 1,854.64, 2,559.24 and 1,155.76 is: 1,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.64 : 2,559.24 = 1,155.76 : x
  2. Step 2: Convert to fraction form
    1,854.64/2,559.24 = 1,155.76/x
  3. Step 3: Cross multiply
    1,854.64x = 2,559.24 × 1,155.76
  4. Step 4: Simplify right side
    1,854.64x = 2,957,867.22
  5. Step 5: Solve for x
    x = 2,957,867.22/1,854.64
  6. Step 6: Final answer
    x = 1,594.85

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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.