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Finding the Fourth Proportional to 63,018.78, 86,965.01 and 36,160.73

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Solution

The fourth proportional to 63,018.78, 86,965.01 and 36,160.73 is: 49,901.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,018.78 : 86,965.01 = 36,160.73 : x
  2. Step 2: Convert to fraction form
    63,018.78/86,965.01 = 36,160.73/x
  3. Step 3: Cross multiply
    63,018.78x = 86,965.01 × 36,160.73
  4. Step 4: Simplify right side
    63,018.78x = 3,144,718,246.06
  5. Step 5: Solve for x
    x = 3,144,718,246.06/63,018.78
  6. Step 6: Final answer
    x = 49,901.29

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1.5x scale

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.