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Finding the Fourth Proportional to 61,939.26, 92,894.88 and 28,641.09

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Solution

The fourth proportional to 61,939.26, 92,894.88 and 28,641.09 is: 42,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,939.26 : 92,894.88 = 28,641.09 : x
  2. Step 2: Convert to fraction form
    61,939.26/92,894.88 = 28,641.09/x
  3. Step 3: Cross multiply
    61,939.26x = 92,894.88 × 28,641.09
  4. Step 4: Simplify right side
    61,939.26x = 2,660,610,618.62
  5. Step 5: Solve for x
    x = 2,660,610,618.62/61,939.26
  6. Step 6: Final answer
    x = 42,955.16

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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.