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Finding the Fourth Proportional to 61,270.42, 91,924.09 and 21,822.40

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Solution

The fourth proportional to 61,270.42, 91,924.09 and 21,822.40 is: 32,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,270.42 : 91,924.09 = 21,822.40 : x
  2. Step 2: Convert to fraction form
    61,270.42/91,924.09 = 21,822.40/x
  3. Step 3: Cross multiply
    61,270.42x = 91,924.09 × 21,822.40
  4. Step 4: Simplify right side
    61,270.42x = 2,006,004,261.62
  5. Step 5: Solve for x
    x = 2,006,004,261.62/61,270.42
  6. Step 6: Final answer
    x = 32,740.17

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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.