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Finding the Fourth Proportional to 63,309.68, 87,389.34 and 36,462.90

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Solution

The fourth proportional to 63,309.68, 87,389.34 and 36,462.90 is: 50,331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,309.68 : 87,389.34 = 36,462.90 : x
  2. Step 2: Convert to fraction form
    63,309.68/87,389.34 = 36,462.90/x
  3. Step 3: Cross multiply
    63,309.68x = 87,389.34 × 36,462.90
  4. Step 4: Simplify right side
    63,309.68x = 3,186,468,765.49
  5. Step 5: Solve for x
    x = 3,186,468,765.49/63,309.68
  6. Step 6: Final answer
    x = 50,331.46

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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.