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Finding the Fourth Proportional to 55,247.65, 82,883.48 and 20,187.25

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Solution

The fourth proportional to 55,247.65, 82,883.48 and 20,187.25 is: 30,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,247.65 : 82,883.48 = 20,187.25 : x
  2. Step 2: Convert to fraction form
    55,247.65/82,883.48 = 20,187.25/x
  3. Step 3: Cross multiply
    55,247.65x = 82,883.48 × 20,187.25
  4. Step 4: Simplify right side
    55,247.65x = 1,673,189,531.63
  5. Step 5: Solve for x
    x = 1,673,189,531.63/55,247.65
  6. Step 6: Final answer
    x = 30,285.26

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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.