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Finding the Fourth Proportional to 61,355.40, 91,989.93 and 23,883.84

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Solution

The fourth proportional to 61,355.40, 91,989.93 and 23,883.84 is: 35,808.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,355.40 : 91,989.93 = 23,883.84 : x
  2. Step 2: Convert to fraction form
    61,355.40/91,989.93 = 23,883.84/x
  3. Step 3: Cross multiply
    61,355.40x = 91,989.93 × 23,883.84
  4. Step 4: Simplify right side
    61,355.40x = 2,197,072,769.73
  5. Step 5: Solve for x
    x = 2,197,072,769.73/61,355.40
  6. Step 6: Final answer
    x = 35,808.96

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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.