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Finding the Fourth Proportional to 36,746.48, 55,119.72 and 11,789.12

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Solution

The fourth proportional to 36,746.48, 55,119.72 and 11,789.12 is: 17,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,746.48 : 55,119.72 = 11,789.12 : x
  2. Step 2: Convert to fraction form
    36,746.48/55,119.72 = 11,789.12/x
  3. Step 3: Cross multiply
    36,746.48x = 55,119.72 × 11,789.12
  4. Step 4: Simplify right side
    36,746.48x = 649,812,993.45
  5. Step 5: Solve for x
    x = 649,812,993.45/36,746.48
  6. Step 6: Final answer
    x = 17,683.68

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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.