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Finding the Fourth Proportional to 71,666.41, 107,499.62 and 27,313.69

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Solution

The fourth proportional to 71,666.41, 107,499.62 and 27,313.69 is: 40,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666.41 : 107,499.62 = 27,313.69 : x
  2. Step 2: Convert to fraction form
    71,666.41/107,499.62 = 27,313.69/x
  3. Step 3: Cross multiply
    71,666.41x = 107,499.62 × 27,313.69
  4. Step 4: Simplify right side
    71,666.41x = 2,936,211,295.80
  5. Step 5: Solve for x
    x = 2,936,211,295.80/71,666.41
  6. Step 6: Final answer
    x = 40,970.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.