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Finding the Fourth Proportional to 38,872.16, 53,650.80 and 22,104.16

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Solution

The fourth proportional to 38,872.16, 53,650.80 and 22,104.16 is: 30,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872.16 : 53,650.80 = 22,104.16 : x
  2. Step 2: Convert to fraction form
    38,872.16/53,650.80 = 22,104.16/x
  3. Step 3: Cross multiply
    38,872.16x = 53,650.80 × 22,104.16
  4. Step 4: Simplify right side
    38,872.16x = 1,185,905,867.33
  5. Step 5: Solve for x
    x = 1,185,905,867.33/38,872.16
  6. Step 6: Final answer
    x = 30,507.85

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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.