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Finding the Fourth Proportional to 57,959.69, 86,897.01 and 18,494.06

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Solution

The fourth proportional to 57,959.69, 86,897.01 and 18,494.06 is: 27,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,959.69 : 86,897.01 = 18,494.06 : x
  2. Step 2: Convert to fraction form
    57,959.69/86,897.01 = 18,494.06/x
  3. Step 3: Cross multiply
    57,959.69x = 86,897.01 × 18,494.06
  4. Step 4: Simplify right side
    57,959.69x = 1,607,078,516.76
  5. Step 5: Solve for x
    x = 1,607,078,516.76/57,959.69
  6. Step 6: Final answer
    x = 27,727.52

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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.