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Finding the Fourth Proportional to 56,557.44, 84,825.72 and 21,488.64

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Solution

The fourth proportional to 56,557.44, 84,825.72 and 21,488.64 is: 32,228.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,557.44 : 84,825.72 = 21,488.64 : x
  2. Step 2: Convert to fraction form
    56,557.44/84,825.72 = 21,488.64/x
  3. Step 3: Cross multiply
    56,557.44x = 84,825.72 × 21,488.64
  4. Step 4: Simplify right side
    56,557.44x = 1,822,789,359.82
  5. Step 5: Solve for x
    x = 1,822,789,359.82/56,557.44
  6. Step 6: Final answer
    x = 32,228.99

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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.