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Finding the Fourth Proportional to 62,970.43, 86,895.84 and 36,111.64

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Solution

The fourth proportional to 62,970.43, 86,895.84 and 36,111.64 is: 49,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,970.43 : 86,895.84 = 36,111.64 : x
  2. Step 2: Convert to fraction form
    62,970.43/86,895.84 = 36,111.64/x
  3. Step 3: Cross multiply
    62,970.43x = 86,895.84 × 36,111.64
  4. Step 4: Simplify right side
    62,970.43x = 3,137,951,291.58
  5. Step 5: Solve for x
    x = 3,137,951,291.58/62,970.43
  6. Step 6: Final answer
    x = 49,832.14

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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.