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Finding the Fourth Proportional to 56,532.58, 84,764.02 and 19,089.09

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Solution

The fourth proportional to 56,532.58, 84,764.02 and 19,089.09 is: 28,621.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,532.58 : 84,764.02 = 19,089.09 : x
  2. Step 2: Convert to fraction form
    56,532.58/84,764.02 = 19,089.09/x
  3. Step 3: Cross multiply
    56,532.58x = 84,764.02 × 19,089.09
  4. Step 4: Simplify right side
    56,532.58x = 1,618,068,233.01
  5. Step 5: Solve for x
    x = 1,618,068,233.01/56,532.58
  6. Step 6: Final answer
    x = 28,621.87

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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.