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Finding the Fourth Proportional to 38,552.08, 53,203.16 and 21,786.16

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Solution

The fourth proportional to 38,552.08, 53,203.16 and 21,786.16 is: 30,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,552.08 : 53,203.16 = 21,786.16 : x
  2. Step 2: Convert to fraction form
    38,552.08/53,203.16 = 21,786.16/x
  3. Step 3: Cross multiply
    38,552.08x = 53,203.16 × 21,786.16
  4. Step 4: Simplify right side
    38,552.08x = 1,159,092,556.27
  5. Step 5: Solve for x
    x = 1,159,092,556.27/38,552.08
  6. Step 6: Final answer
    x = 30,065.63

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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.