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Finding the Fourth Proportional to 59,369.76, 89,060.58 and 21,939.66

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Solution

The fourth proportional to 59,369.76, 89,060.58 and 21,939.66 is: 32,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,369.76 : 89,060.58 = 21,939.66 : x
  2. Step 2: Convert to fraction form
    59,369.76/89,060.58 = 21,939.66/x
  3. Step 3: Cross multiply
    59,369.76x = 89,060.58 × 21,939.66
  4. Step 4: Simplify right side
    59,369.76x = 1,953,958,844.60
  5. Step 5: Solve for x
    x = 1,953,958,844.60/59,369.76
  6. Step 6: Final answer
    x = 32,911.69

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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.