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Finding the Fourth Proportional to 62,571.52, 93,858 and 21,018.52

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Solution

The fourth proportional to 62,571.52, 93,858 and 21,018.52 is: 31,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,571.52 : 93,858 = 21,018.52 : x
  2. Step 2: Convert to fraction form
    62,571.52/93,858 = 21,018.52/x
  3. Step 3: Cross multiply
    62,571.52x = 93,858 × 21,018.52
  4. Step 4: Simplify right side
    62,571.52x = 1,972,756,250.16
  5. Step 5: Solve for x
    x = 1,972,756,250.16/62,571.52
  6. Step 6: Final answer
    x = 31,528.02

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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.