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Finding the Fourth Proportional to 53,659.64, 80,489.46 and 18,599.30

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Solution

The fourth proportional to 53,659.64, 80,489.46 and 18,599.30 is: 27,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,659.64 : 80,489.46 = 18,599.30 : x
  2. Step 2: Convert to fraction form
    53,659.64/80,489.46 = 18,599.30/x
  3. Step 3: Cross multiply
    53,659.64x = 80,489.46 × 18,599.30
  4. Step 4: Simplify right side
    53,659.64x = 1,497,047,582.51
  5. Step 5: Solve for x
    x = 1,497,047,582.51/53,659.64
  6. Step 6: Final answer
    x = 27,898.95

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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.