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Finding the Fourth Proportional to 61,218.27, 91,816.62 and 16,834.32

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Solution

The fourth proportional to 61,218.27, 91,816.62 and 16,834.32 is: 25,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,218.27 : 91,816.62 = 16,834.32 : x
  2. Step 2: Convert to fraction form
    61,218.27/91,816.62 = 16,834.32/x
  3. Step 3: Cross multiply
    61,218.27x = 91,816.62 × 16,834.32
  4. Step 4: Simplify right side
    61,218.27x = 1,545,670,362.40
  5. Step 5: Solve for x
    x = 1,545,670,362.40/61,218.27
  6. Step 6: Final answer
    x = 25,248.51

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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.