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Finding the Fourth Proportional to 40,671.75, 60,960.78 and 15,700.71

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Solution

The fourth proportional to 40,671.75, 60,960.78 and 15,700.71 is: 23,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,671.75 : 60,960.78 = 15,700.71 : x
  2. Step 2: Convert to fraction form
    40,671.75/60,960.78 = 15,700.71/x
  3. Step 3: Cross multiply
    40,671.75x = 60,960.78 × 15,700.71
  4. Step 4: Simplify right side
    40,671.75x = 957,127,528.15
  5. Step 5: Solve for x
    x = 957,127,528.15/40,671.75
  6. Step 6: Final answer
    x = 23,532.98

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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.