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Finding the Fourth Proportional to 62,979, 94,373.28 and 37,991.28

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Solution

The fourth proportional to 62,979, 94,373.28 and 37,991.28 is: 56,929.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,979 : 94,373.28 = 37,991.28 : x
  2. Step 2: Convert to fraction form
    62,979/94,373.28 = 37,991.28/x
  3. Step 3: Cross multiply
    62,979x = 94,373.28 × 37,991.28
  4. Step 4: Simplify right side
    62,979x = 3,585,361,705.00
  5. Step 5: Solve for x
    x = 3,585,361,705.00/62,979
  6. Step 6: Final answer
    x = 56,929.48

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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.