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Finding the Fourth Proportional to 63,016.66, 86,969.12 and 47,073.43

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Solution

The fourth proportional to 63,016.66, 86,969.12 and 47,073.43 is: 64,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,016.66 : 86,969.12 = 47,073.43 : x
  2. Step 2: Convert to fraction form
    63,016.66/86,969.12 = 47,073.43/x
  3. Step 3: Cross multiply
    63,016.66x = 86,969.12 × 47,073.43
  4. Step 4: Simplify right side
    63,016.66x = 4,093,934,782.48
  5. Step 5: Solve for x
    x = 4,093,934,782.48/63,016.66
  6. Step 6: Final answer
    x = 64,965.91

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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.