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Finding the Fourth Proportional to 38,593, 53,258.34 and 20,929

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Solution

The fourth proportional to 38,593, 53,258.34 and 20,929 is: 28,882.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,593 : 53,258.34 = 20,929 : x
  2. Step 2: Convert to fraction form
    38,593/53,258.34 = 20,929/x
  3. Step 3: Cross multiply
    38,593x = 53,258.34 × 20,929
  4. Step 4: Simplify right side
    38,593x = 1,114,643,797.86
  5. Step 5: Solve for x
    x = 1,114,643,797.86/38,593
  6. Step 6: Final answer
    x = 28,882.02

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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.