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Finding the Fourth Proportional to 66,474.72, 91,733.76 and 36,666.72

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Solution

The fourth proportional to 66,474.72, 91,733.76 and 36,666.72 is: 50,599.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,474.72 : 91,733.76 = 36,666.72 : x
  2. Step 2: Convert to fraction form
    66,474.72/91,733.76 = 36,666.72/x
  3. Step 3: Cross multiply
    66,474.72x = 91,733.76 × 36,666.72
  4. Step 4: Simplify right side
    66,474.72x = 3,363,576,092.47
  5. Step 5: Solve for x
    x = 3,363,576,092.47/66,474.72
  6. Step 6: Final answer
    x = 50,599.33

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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.