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Finding the Fourth Proportional to 63,785.54, 95,689.92 and 21,093.41

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Solution

The fourth proportional to 63,785.54, 95,689.92 and 21,093.41 is: 31,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,785.54 : 95,689.92 = 21,093.41 : x
  2. Step 2: Convert to fraction form
    63,785.54/95,689.92 = 21,093.41/x
  3. Step 3: Cross multiply
    63,785.54x = 95,689.92 × 21,093.41
  4. Step 4: Simplify right side
    63,785.54x = 2,018,426,715.43
  5. Step 5: Solve for x
    x = 2,018,426,715.43/63,785.54
  6. Step 6: Final answer
    x = 31,643.95

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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.