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Finding the Fourth Proportional to 15,993.63, 23,981.63 and 7,435.71

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Solution

The fourth proportional to 15,993.63, 23,981.63 and 7,435.71 is: 11,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.63 : 23,981.63 = 7,435.71 : x
  2. Step 2: Convert to fraction form
    15,993.63/23,981.63 = 7,435.71/x
  3. Step 3: Cross multiply
    15,993.63x = 23,981.63 × 7,435.71
  4. Step 4: Simplify right side
    15,993.63x = 178,320,408.83
  5. Step 5: Solve for x
    x = 178,320,408.83/15,993.63
  6. Step 6: Final answer
    x = 11,149.46

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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.