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Finding the Fourth Proportional to 15,879.96, 23,815.02 and 12,752.58

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Solution

The fourth proportional to 15,879.96, 23,815.02 and 12,752.58 is: 19,124.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.96 : 23,815.02 = 12,752.58 : x
  2. Step 2: Convert to fraction form
    15,879.96/23,815.02 = 12,752.58/x
  3. Step 3: Cross multiply
    15,879.96x = 23,815.02 × 12,752.58
  4. Step 4: Simplify right side
    15,879.96x = 303,702,947.75
  5. Step 5: Solve for x
    x = 303,702,947.75/15,879.96
  6. Step 6: Final answer
    x = 19,124.92

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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.