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Finding the Fourth Proportional to 38,187.52, 57,262.75 and 13,228.99

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Solution

The fourth proportional to 38,187.52, 57,262.75 and 13,228.99 is: 19,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187.52 : 57,262.75 = 13,228.99 : x
  2. Step 2: Convert to fraction form
    38,187.52/57,262.75 = 13,228.99/x
  3. Step 3: Cross multiply
    38,187.52x = 57,262.75 × 13,228.99
  4. Step 4: Simplify right side
    38,187.52x = 757,528,170.89
  5. Step 5: Solve for x
    x = 757,528,170.89/38,187.52
  6. Step 6: Final answer
    x = 19,837.06

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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.