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Finding the Fourth Proportional to 56,525, 84,789.12 and 14,972

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Solution

The fourth proportional to 56,525, 84,789.12 and 14,972 is: 22,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,525 : 84,789.12 = 14,972 : x
  2. Step 2: Convert to fraction form
    56,525/84,789.12 = 14,972/x
  3. Step 3: Cross multiply
    56,525x = 84,789.12 × 14,972
  4. Step 4: Simplify right side
    56,525x = 1,269,462,704.64
  5. Step 5: Solve for x
    x = 1,269,462,704.64/56,525
  6. Step 6: Final answer
    x = 22,458.43

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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.