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Finding the Fourth Proportional to 58,708.80, 81,021.60 and 33,217.38

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Solution

The fourth proportional to 58,708.80, 81,021.60 and 33,217.38 is: 45,841.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,708.80 : 81,021.60 = 33,217.38 : x
  2. Step 2: Convert to fraction form
    58,708.80/81,021.60 = 33,217.38/x
  3. Step 3: Cross multiply
    58,708.80x = 81,021.60 × 33,217.38
  4. Step 4: Simplify right side
    58,708.80x = 2,691,325,275.41
  5. Step 5: Solve for x
    x = 2,691,325,275.41/58,708.80
  6. Step 6: Final answer
    x = 45,841.94

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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.