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Finding the Fourth Proportional to 60,908.01, 91,359.10 and 15,929.38

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Solution

The fourth proportional to 60,908.01, 91,359.10 and 15,929.38 is: 23,893.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,908.01 : 91,359.10 = 15,929.38 : x
  2. Step 2: Convert to fraction form
    60,908.01/91,359.10 = 15,929.38/x
  3. Step 3: Cross multiply
    60,908.01x = 91,359.10 × 15,929.38
  4. Step 4: Simplify right side
    60,908.01x = 1,455,293,820.36
  5. Step 5: Solve for x
    x = 1,455,293,820.36/60,908.01
  6. Step 6: Final answer
    x = 23,893.31

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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.