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Finding the Fourth Proportional to 43,408.44, 65,117.88 and 15,322.71

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Solution

The fourth proportional to 43,408.44, 65,117.88 and 15,322.71 is: 22,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,408.44 : 65,117.88 = 15,322.71 : x
  2. Step 2: Convert to fraction form
    43,408.44/65,117.88 = 15,322.71/x
  3. Step 3: Cross multiply
    43,408.44x = 65,117.88 × 15,322.71
  4. Step 4: Simplify right side
    43,408.44x = 997,782,391.05
  5. Step 5: Solve for x
    x = 997,782,391.05/43,408.44
  6. Step 6: Final answer
    x = 22,985.91

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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.