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Finding the Fourth Proportional to 66,095.91, 91,212.44 and 35,881.25

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Solution

The fourth proportional to 66,095.91, 91,212.44 and 35,881.25 is: 49,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,095.91 : 91,212.44 = 35,881.25 : x
  2. Step 2: Convert to fraction form
    66,095.91/91,212.44 = 35,881.25/x
  3. Step 3: Cross multiply
    66,095.91x = 91,212.44 × 35,881.25
  4. Step 4: Simplify right side
    66,095.91x = 3,272,815,727.28
  5. Step 5: Solve for x
    x = 3,272,815,727.28/66,095.91
  6. Step 6: Final answer
    x = 49,516.16

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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.