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Finding the Fourth Proportional to 61,576.64, 84,975.72 and 34,725.68

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Solution

The fourth proportional to 61,576.64, 84,975.72 and 34,725.68 is: 47,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,576.64 : 84,975.72 = 34,725.68 : x
  2. Step 2: Convert to fraction form
    61,576.64/84,975.72 = 34,725.68/x
  3. Step 3: Cross multiply
    61,576.64x = 84,975.72 × 34,725.68
  4. Step 4: Simplify right side
    61,576.64x = 2,950,839,660.49
  5. Step 5: Solve for x
    x = 2,950,839,660.49/61,576.64
  6. Step 6: Final answer
    x = 47,921.41

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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.