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Finding the Fourth Proportional to 56,767.96, 85,151.94 and 21,711.16

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Solution

The fourth proportional to 56,767.96, 85,151.94 and 21,711.16 is: 32,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,767.96 : 85,151.94 = 21,711.16 : x
  2. Step 2: Convert to fraction form
    56,767.96/85,151.94 = 21,711.16/x
  3. Step 3: Cross multiply
    56,767.96x = 85,151.94 × 21,711.16
  4. Step 4: Simplify right side
    56,767.96x = 1,848,747,393.65
  5. Step 5: Solve for x
    x = 1,848,747,393.65/56,767.96
  6. Step 6: Final answer
    x = 32,566.74

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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.