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Finding the Fourth Proportional to 62,253, 93,380.31 and 20,700

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Solution

The fourth proportional to 62,253, 93,380.31 and 20,700 is: 31,050.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,253 : 93,380.31 = 20,700 : x
  2. Step 2: Convert to fraction form
    62,253/93,380.31 = 20,700/x
  3. Step 3: Cross multiply
    62,253x = 93,380.31 × 20,700
  4. Step 4: Simplify right side
    62,253x = 1,932,972,417
  5. Step 5: Solve for x
    x = 1,932,972,417/62,253
  6. Step 6: Final answer
    x = 31,050.27

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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.