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Finding the Fourth Proportional to 68,874.69, 95,039.77 and 38,663.34

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Solution

The fourth proportional to 68,874.69, 95,039.77 and 38,663.34 is: 53,351.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874.69 : 95,039.77 = 38,663.34 : x
  2. Step 2: Convert to fraction form
    68,874.69/95,039.77 = 38,663.34/x
  3. Step 3: Cross multiply
    68,874.69x = 95,039.77 × 38,663.34
  4. Step 4: Simplify right side
    68,874.69x = 3,674,554,941.03
  5. Step 5: Solve for x
    x = 3,674,554,941.03/68,874.69
  6. Step 6: Final answer
    x = 53,351.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.