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Finding the Fourth Proportional to 48,991.60, 73,486.92 and 13,926.64

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Solution

The fourth proportional to 48,991.60, 73,486.92 and 13,926.64 is: 20,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,991.60 : 73,486.92 = 13,926.64 : x
  2. Step 2: Convert to fraction form
    48,991.60/73,486.92 = 13,926.64/x
  3. Step 3: Cross multiply
    48,991.60x = 73,486.92 × 13,926.64
  4. Step 4: Simplify right side
    48,991.60x = 1,023,425,879.55
  5. Step 5: Solve for x
    x = 1,023,425,879.55/48,991.60
  6. Step 6: Final answer
    x = 20,889.82

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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.