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Finding the Fourth Proportional to 56,463.75, 84,697.38 and 20,933.91

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Solution

The fourth proportional to 56,463.75, 84,697.38 and 20,933.91 is: 31,401.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,463.75 : 84,697.38 = 20,933.91 : x
  2. Step 2: Convert to fraction form
    56,463.75/84,697.38 = 20,933.91/x
  3. Step 3: Cross multiply
    56,463.75x = 84,697.38 × 20,933.91
  4. Step 4: Simplify right side
    56,463.75x = 1,773,047,330.16
  5. Step 5: Solve for x
    x = 1,773,047,330.16/56,463.75
  6. Step 6: Final answer
    x = 31,401.52

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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.