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Finding the Fourth Proportional to 61,267.28, 91,807.29 and 25,709.31

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Solution

The fourth proportional to 61,267.28, 91,807.29 and 25,709.31 is: 38,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,267.28 : 91,807.29 = 25,709.31 : x
  2. Step 2: Convert to fraction form
    61,267.28/91,807.29 = 25,709.31/x
  3. Step 3: Cross multiply
    61,267.28x = 91,807.29 × 25,709.31
  4. Step 4: Simplify right side
    61,267.28x = 2,360,302,078.87
  5. Step 5: Solve for x
    x = 2,360,302,078.87/61,267.28
  6. Step 6: Final answer
    x = 38,524.68

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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.