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Finding the Fourth Proportional to 61,112, 84,337.80 and 35,956.64

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Solution

The fourth proportional to 61,112, 84,337.80 and 35,956.64 is: 49,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,112 : 84,337.80 = 35,956.64 : x
  2. Step 2: Convert to fraction form
    61,112/84,337.80 = 35,956.64/x
  3. Step 3: Cross multiply
    61,112x = 84,337.80 × 35,956.64
  4. Step 4: Simplify right side
    61,112x = 3,032,503,912.99
  5. Step 5: Solve for x
    x = 3,032,503,912.99/61,112
  6. Step 6: Final answer
    x = 49,622.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.