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Finding the Fourth Proportional to 58,467.54, 87,691.56 and 21,019.98

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Solution

The fourth proportional to 58,467.54, 87,691.56 and 21,019.98 is: 31,526.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,467.54 : 87,691.56 = 21,019.98 : x
  2. Step 2: Convert to fraction form
    58,467.54/87,691.56 = 21,019.98/x
  3. Step 3: Cross multiply
    58,467.54x = 87,691.56 × 21,019.98
  4. Step 4: Simplify right side
    58,467.54x = 1,843,274,837.37
  5. Step 5: Solve for x
    x = 1,843,274,837.37/58,467.54
  6. Step 6: Final answer
    x = 31,526.46

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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.