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Finding the Fourth Proportional to 66,555.97, 91,847.68 and 36,341.50

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Solution

The fourth proportional to 66,555.97, 91,847.68 and 36,341.50 is: 50,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,555.97 : 91,847.68 = 36,341.50 : x
  2. Step 2: Convert to fraction form
    66,555.97/91,847.68 = 36,341.50/x
  3. Step 3: Cross multiply
    66,555.97x = 91,847.68 × 36,341.50
  4. Step 4: Simplify right side
    66,555.97x = 3,337,882,462.72
  5. Step 5: Solve for x
    x = 3,337,882,462.72/66,555.97
  6. Step 6: Final answer
    x = 50,151.51

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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.