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Finding the Fourth Proportional to 53,104.80, 73,284.60 and 30,748.80

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Solution

The fourth proportional to 53,104.80, 73,284.60 and 30,748.80 is: 42,433.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,104.80 : 73,284.60 = 30,748.80 : x
  2. Step 2: Convert to fraction form
    53,104.80/73,284.60 = 30,748.80/x
  3. Step 3: Cross multiply
    53,104.80x = 73,284.60 × 30,748.80
  4. Step 4: Simplify right side
    53,104.80x = 2,253,413,508.48
  5. Step 5: Solve for x
    x = 2,253,413,508.48/53,104.80
  6. Step 6: Final answer
    x = 42,433.33

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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.