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Finding the Fourth Proportional to 62,961.64, 86,893.19 and 47,018.41

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Solution

The fourth proportional to 62,961.64, 86,893.19 and 47,018.41 is: 64,889.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,961.64 : 86,893.19 = 47,018.41 : x
  2. Step 2: Convert to fraction form
    62,961.64/86,893.19 = 47,018.41/x
  3. Step 3: Cross multiply
    62,961.64x = 86,893.19 × 47,018.41
  4. Step 4: Simplify right side
    62,961.64x = 4,085,578,964.07
  5. Step 5: Solve for x
    x = 4,085,578,964.07/62,961.64
  6. Step 6: Final answer
    x = 64,889.98

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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.