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Finding the Fourth Proportional to 66,555.47, 91,846.99 and 36,341

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Solution

The fourth proportional to 66,555.47, 91,846.99 and 36,341 is: 50,150.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,555.47 : 91,846.99 = 36,341 : x
  2. Step 2: Convert to fraction form
    66,555.47/91,846.99 = 36,341/x
  3. Step 3: Cross multiply
    66,555.47x = 91,846.99 × 36,341
  4. Step 4: Simplify right side
    66,555.47x = 3,337,811,463.59
  5. Step 5: Solve for x
    x = 3,337,811,463.59/66,555.47
  6. Step 6: Final answer
    x = 50,150.82

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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.