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Finding the Fourth Proportional to 12,594.70, 18,879.72 and 4,691.42

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Solution

The fourth proportional to 12,594.70, 18,879.72 and 4,691.42 is: 7,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,594.70 : 18,879.72 = 4,691.42 : x
  2. Step 2: Convert to fraction form
    12,594.70/18,879.72 = 4,691.42/x
  3. Step 3: Cross multiply
    12,594.70x = 18,879.72 × 4,691.42
  4. Step 4: Simplify right side
    12,594.70x = 88,572,696.00
  5. Step 5: Solve for x
    x = 88,572,696.00/12,594.70
  6. Step 6: Final answer
    x = 7,032.54

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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.