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Finding the Fourth Proportional to 51,755.76, 77,633.64 and 41,318.64

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Solution

The fourth proportional to 51,755.76, 77,633.64 and 41,318.64 is: 61,977.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,755.76 : 77,633.64 = 41,318.64 : x
  2. Step 2: Convert to fraction form
    51,755.76/77,633.64 = 41,318.64/x
  3. Step 3: Cross multiply
    51,755.76x = 77,633.64 × 41,318.64
  4. Step 4: Simplify right side
    51,755.76x = 3,207,716,423.05
  5. Step 5: Solve for x
    x = 3,207,716,423.05/51,755.76
  6. Step 6: Final answer
    x = 61,977.96

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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.