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Finding the Fourth Proportional to 61,785.92, 92,689.86 and 22,398.05

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Solution

The fourth proportional to 61,785.92, 92,689.86 and 22,398.05 is: 33,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,785.92 : 92,689.86 = 22,398.05 : x
  2. Step 2: Convert to fraction form
    61,785.92/92,689.86 = 22,398.05/x
  3. Step 3: Cross multiply
    61,785.92x = 92,689.86 × 22,398.05
  4. Step 4: Simplify right side
    61,785.92x = 2,076,072,118.77
  5. Step 5: Solve for x
    x = 2,076,072,118.77/61,785.92
  6. Step 6: Final answer
    x = 33,601.06

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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.