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Finding the Fourth Proportional to 67,281, 92,847.78 and 37,474.92

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Solution

The fourth proportional to 67,281, 92,847.78 and 37,474.92 is: 51,715.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,281 : 92,847.78 = 37,474.92 : x
  2. Step 2: Convert to fraction form
    67,281/92,847.78 = 37,474.92/x
  3. Step 3: Cross multiply
    67,281x = 92,847.78 × 37,474.92
  4. Step 4: Simplify right side
    67,281x = 3,479,463,127.68
  5. Step 5: Solve for x
    x = 3,479,463,127.68/67,281
  6. Step 6: Final answer
    x = 51,715.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.