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Finding the Fourth Proportional to 65,251.50, 90,053.38 and 36,576.03

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Solution

The fourth proportional to 65,251.50, 90,053.38 and 36,576.03 is: 50,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,251.50 : 90,053.38 = 36,576.03 : x
  2. Step 2: Convert to fraction form
    65,251.50/90,053.38 = 36,576.03/x
  3. Step 3: Cross multiply
    65,251.50x = 90,053.38 × 36,576.03
  4. Step 4: Simplify right side
    65,251.50x = 3,293,795,128.48
  5. Step 5: Solve for x
    x = 3,293,795,128.48/65,251.50
  6. Step 6: Final answer
    x = 50,478.46

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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.