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Finding the Fourth Proportional to 39,499.50, 54,509.34 and 22,732.50

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Solution

The fourth proportional to 39,499.50, 54,509.34 and 22,732.50 is: 31,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,499.50 : 54,509.34 = 22,732.50 : x
  2. Step 2: Convert to fraction form
    39,499.50/54,509.34 = 22,732.50/x
  3. Step 3: Cross multiply
    39,499.50x = 54,509.34 × 22,732.50
  4. Step 4: Simplify right side
    39,499.50x = 1,239,133,571.55
  5. Step 5: Solve for x
    x = 1,239,133,571.55/39,499.50
  6. Step 6: Final answer
    x = 31,370.87

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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.