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Finding the Fourth Proportional to 65,174.04, 89,919.26 and 36,489.48

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Solution

The fourth proportional to 65,174.04, 89,919.26 and 36,489.48 is: 50,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,174.04 : 89,919.26 = 36,489.48 : x
  2. Step 2: Convert to fraction form
    65,174.04/89,919.26 = 36,489.48/x
  3. Step 3: Cross multiply
    65,174.04x = 89,919.26 × 36,489.48
  4. Step 4: Simplify right side
    65,174.04x = 3,281,107,039.38
  5. Step 5: Solve for x
    x = 3,281,107,039.38/65,174.04
  6. Step 6: Final answer
    x = 50,343.77

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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.