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Finding the Fourth Proportional to 66,786.99, 92,166.20 and 36,160.41

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Solution

The fourth proportional to 66,786.99, 92,166.20 and 36,160.41 is: 49,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,786.99 : 92,166.20 = 36,160.41 : x
  2. Step 2: Convert to fraction form
    66,786.99/92,166.20 = 36,160.41/x
  3. Step 3: Cross multiply
    66,786.99x = 92,166.20 × 36,160.41
  4. Step 4: Simplify right side
    66,786.99x = 3,332,767,399.34
  5. Step 5: Solve for x
    x = 3,332,767,399.34/66,786.99
  6. Step 6: Final answer
    x = 49,901.45

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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.