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Finding the Fourth Proportional to 53,727.60, 80,437.80 and 32,991.60

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Solution

The fourth proportional to 53,727.60, 80,437.80 and 32,991.60 is: 49,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,727.60 : 80,437.80 = 32,991.60 : x
  2. Step 2: Convert to fraction form
    53,727.60/80,437.80 = 32,991.60/x
  3. Step 3: Cross multiply
    53,727.60x = 80,437.80 × 32,991.60
  4. Step 4: Simplify right side
    53,727.60x = 2,653,771,722.48
  5. Step 5: Solve for x
    x = 2,653,771,722.48/53,727.60
  6. Step 6: Final answer
    x = 49,393.08

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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.