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Finding the Fourth Proportional to 38,662.88, 53,353.89 and 22,748.36

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Solution

The fourth proportional to 38,662.88, 53,353.89 and 22,748.36 is: 31,392.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,662.88 : 53,353.89 = 22,748.36 : x
  2. Step 2: Convert to fraction form
    38,662.88/53,353.89 = 22,748.36/x
  3. Step 3: Cross multiply
    38,662.88x = 53,353.89 × 22,748.36
  4. Step 4: Simplify right side
    38,662.88x = 1,213,713,230.35
  5. Step 5: Solve for x
    x = 1,213,713,230.35/38,662.88
  6. Step 6: Final answer
    x = 31,392.21

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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.