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Finding the Fourth Proportional to 22,125, 33,187.50 and 5,709

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Solution

The fourth proportional to 22,125, 33,187.50 and 5,709 is: 8,563.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,125 : 33,187.50 = 5,709 : x
  2. Step 2: Convert to fraction form
    22,125/33,187.50 = 5,709/x
  3. Step 3: Cross multiply
    22,125x = 33,187.50 × 5,709
  4. Step 4: Simplify right side
    22,125x = 189,467,437.50
  5. Step 5: Solve for x
    x = 189,467,437.50/22,125
  6. Step 6: Final answer
    x = 8,563.50

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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.