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Finding the Fourth Proportional to 45,386.80, 67,945.80 and 33,751.60

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Solution

The fourth proportional to 45,386.80, 67,945.80 and 33,751.60 is: 50,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,386.80 : 67,945.80 = 33,751.60 : x
  2. Step 2: Convert to fraction form
    45,386.80/67,945.80 = 33,751.60/x
  3. Step 3: Cross multiply
    45,386.80x = 67,945.80 × 33,751.60
  4. Step 4: Simplify right side
    45,386.80x = 2,293,279,463.28
  5. Step 5: Solve for x
    x = 2,293,279,463.28/45,386.80
  6. Step 6: Final answer
    x = 50,527.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.