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Finding the Fourth Proportional to 60,245.70, 83,139.56 and 33,388.66

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Solution

The fourth proportional to 60,245.70, 83,139.56 and 33,388.66 is: 46,076.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,245.70 : 83,139.56 = 33,388.66 : x
  2. Step 2: Convert to fraction form
    60,245.70/83,139.56 = 33,388.66/x
  3. Step 3: Cross multiply
    60,245.70x = 83,139.56 × 33,388.66
  4. Step 4: Simplify right side
    60,245.70x = 2,775,918,501.39
  5. Step 5: Solve for x
    x = 2,775,918,501.39/60,245.70
  6. Step 6: Final answer
    x = 46,076.62

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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.