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Finding the Fourth Proportional to 43,117.44, 64,674.72 and 15,414.72

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Solution

The fourth proportional to 43,117.44, 64,674.72 and 15,414.72 is: 23,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,117.44 : 64,674.72 = 15,414.72 : x
  2. Step 2: Convert to fraction form
    43,117.44/64,674.72 = 15,414.72/x
  3. Step 3: Cross multiply
    43,117.44x = 64,674.72 × 15,414.72
  4. Step 4: Simplify right side
    43,117.44x = 996,942,699.88
  5. Step 5: Solve for x
    x = 996,942,699.88/43,117.44
  6. Step 6: Final answer
    x = 23,121.57

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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.