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Finding the Fourth Proportional to 62,610.84, 93,917.76 and 21,057.84

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Solution

The fourth proportional to 62,610.84, 93,917.76 and 21,057.84 is: 31,587.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,610.84 : 93,917.76 = 21,057.84 : x
  2. Step 2: Convert to fraction form
    62,610.84/93,917.76 = 21,057.84/x
  3. Step 3: Cross multiply
    62,610.84x = 93,917.76 × 21,057.84
  4. Step 4: Simplify right side
    62,610.84x = 1,977,705,163.24
  5. Step 5: Solve for x
    x = 1,977,705,163.24/62,610.84
  6. Step 6: Final answer
    x = 31,587.26

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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.