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Finding the Fourth Proportional to 36,939.68, 55,409.16 and 9,237.68

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Solution

The fourth proportional to 36,939.68, 55,409.16 and 9,237.68 is: 13,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,939.68 : 55,409.16 = 9,237.68 : x
  2. Step 2: Convert to fraction form
    36,939.68/55,409.16 = 9,237.68/x
  3. Step 3: Cross multiply
    36,939.68x = 55,409.16 × 9,237.68
  4. Step 4: Simplify right side
    36,939.68x = 511,852,089.15
  5. Step 5: Solve for x
    x = 511,852,089.15/36,939.68
  6. Step 6: Final answer
    x = 13,856.43

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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.