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Finding the Fourth Proportional to 63,039.78, 94,581.27 and 21,515.94

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Solution

The fourth proportional to 63,039.78, 94,581.27 and 21,515.94 is: 32,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,039.78 : 94,581.27 = 21,515.94 : x
  2. Step 2: Convert to fraction form
    63,039.78/94,581.27 = 21,515.94/x
  3. Step 3: Cross multiply
    63,039.78x = 94,581.27 × 21,515.94
  4. Step 4: Simplify right side
    63,039.78x = 2,035,004,930.44
  5. Step 5: Solve for x
    x = 2,035,004,930.44/63,039.78
  6. Step 6: Final answer
    x = 32,281.28

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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.