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Finding the Fourth Proportional to 53,670.87, 80,496.99 and 14,231.97

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Solution

The fourth proportional to 53,670.87, 80,496.99 and 14,231.97 is: 21,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,670.87 : 80,496.99 = 14,231.97 : x
  2. Step 2: Convert to fraction form
    53,670.87/80,496.99 = 14,231.97/x
  3. Step 3: Cross multiply
    53,670.87x = 80,496.99 × 14,231.97
  4. Step 4: Simplify right side
    53,670.87x = 1,145,630,746.77
  5. Step 5: Solve for x
    x = 1,145,630,746.77/53,670.87
  6. Step 6: Final answer
    x = 21,345.48

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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.