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Finding the Fourth Proportional to 53,053.92, 73,214.78 and 28,854.88

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Solution

The fourth proportional to 53,053.92, 73,214.78 and 28,854.88 is: 39,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,053.92 : 73,214.78 = 28,854.88 : x
  2. Step 2: Convert to fraction form
    53,053.92/73,214.78 = 28,854.88/x
  3. Step 3: Cross multiply
    53,053.92x = 73,214.78 × 28,854.88
  4. Step 4: Simplify right side
    53,053.92x = 2,112,603,691.13
  5. Step 5: Solve for x
    x = 2,112,603,691.13/53,053.92
  6. Step 6: Final answer
    x = 39,819.94

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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.