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Finding the Fourth Proportional to 62,108.51, 93,162.79 and 19,988.58

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Solution

The fourth proportional to 62,108.51, 93,162.79 and 19,988.58 is: 29,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,108.51 : 93,162.79 = 19,988.58 : x
  2. Step 2: Convert to fraction form
    62,108.51/93,162.79 = 19,988.58/x
  3. Step 3: Cross multiply
    62,108.51x = 93,162.79 × 19,988.58
  4. Step 4: Simplify right side
    62,108.51x = 1,862,192,255.28
  5. Step 5: Solve for x
    x = 1,862,192,255.28/62,108.51
  6. Step 6: Final answer
    x = 29,982.89

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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.