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Finding the Fourth Proportional to 62,976.56, 94,447.28 and 20,859.93

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Solution

The fourth proportional to 62,976.56, 94,447.28 and 20,859.93 is: 31,284.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,976.56 : 94,447.28 = 20,859.93 : x
  2. Step 2: Convert to fraction form
    62,976.56/94,447.28 = 20,859.93/x
  3. Step 3: Cross multiply
    62,976.56x = 94,447.28 × 20,859.93
  4. Step 4: Simplify right side
    62,976.56x = 1,970,163,701.64
  5. Step 5: Solve for x
    x = 1,970,163,701.64/62,976.56
  6. Step 6: Final answer
    x = 31,284.08

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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.