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Finding the Fourth Proportional to 12,594.76, 18,879.82 and 4,691.49

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Solution

The fourth proportional to 12,594.76, 18,879.82 and 4,691.49 is: 7,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,594.76 : 18,879.82 = 4,691.49 : x
  2. Step 2: Convert to fraction form
    12,594.76/18,879.82 = 4,691.49/x
  3. Step 3: Cross multiply
    12,594.76x = 18,879.82 × 4,691.49
  4. Step 4: Simplify right side
    12,594.76x = 88,574,486.73
  5. Step 5: Solve for x
    x = 88,574,486.73/12,594.76
  6. Step 6: Final answer
    x = 7,032.65

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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.