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Finding the Fourth Proportional to 52,124.66, 78,187 and 20,952.62

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Solution

The fourth proportional to 52,124.66, 78,187 and 20,952.62 is: 31,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,124.66 : 78,187 = 20,952.62 : x
  2. Step 2: Convert to fraction form
    52,124.66/78,187 = 20,952.62/x
  3. Step 3: Cross multiply
    52,124.66x = 78,187 × 20,952.62
  4. Step 4: Simplify right side
    52,124.66x = 1,638,222,499.94
  5. Step 5: Solve for x
    x = 1,638,222,499.94/52,124.66
  6. Step 6: Final answer
    x = 31,428.93

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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.