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Finding the Fourth Proportional to 33,937.72, 46,878.92 and 28,290.92

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Solution

The fourth proportional to 33,937.72, 46,878.92 and 28,290.92 is: 39,078.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,937.72 : 46,878.92 = 28,290.92 : x
  2. Step 2: Convert to fraction form
    33,937.72/46,878.92 = 28,290.92/x
  3. Step 3: Cross multiply
    33,937.72x = 46,878.92 × 28,290.92
  4. Step 4: Simplify right side
    33,937.72x = 1,326,247,775.41
  5. Step 5: Solve for x
    x = 1,326,247,775.41/33,937.72
  6. Step 6: Final answer
    x = 39,078.87

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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.