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Finding the Fourth Proportional to 61,085.28, 91,628.98 and 19,532.28

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Solution

The fourth proportional to 61,085.28, 91,628.98 and 19,532.28 is: 29,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,085.28 : 91,628.98 = 19,532.28 : x
  2. Step 2: Convert to fraction form
    61,085.28/91,628.98 = 19,532.28/x
  3. Step 3: Cross multiply
    61,085.28x = 91,628.98 × 19,532.28
  4. Step 4: Simplify right side
    61,085.28x = 1,789,722,893.47
  5. Step 5: Solve for x
    x = 1,789,722,893.47/61,085.28
  6. Step 6: Final answer
    x = 29,298.76

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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.