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Finding the Fourth Proportional to 66,720.84, 92,073.97 and 36,505.81

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Solution

The fourth proportional to 66,720.84, 92,073.97 and 36,505.81 is: 50,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,720.84 : 92,073.97 = 36,505.81 : x
  2. Step 2: Convert to fraction form
    66,720.84/92,073.97 = 36,505.81/x
  3. Step 3: Cross multiply
    66,720.84x = 92,073.97 × 36,505.81
  4. Step 4: Simplify right side
    66,720.84x = 3,361,234,854.77
  5. Step 5: Solve for x
    x = 3,361,234,854.77/66,720.84
  6. Step 6: Final answer
    x = 50,377.59

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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.