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Finding the Fourth Proportional to 66,291.24, 91,479.17 and 36,076.62

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Solution

The fourth proportional to 66,291.24, 91,479.17 and 36,076.62 is: 49,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,291.24 : 91,479.17 = 36,076.62 : x
  2. Step 2: Convert to fraction form
    66,291.24/91,479.17 = 36,076.62/x
  3. Step 3: Cross multiply
    66,291.24x = 91,479.17 × 36,076.62
  4. Step 4: Simplify right side
    66,291.24x = 3,300,258,915.39
  5. Step 5: Solve for x
    x = 3,300,258,915.39/66,291.24
  6. Step 6: Final answer
    x = 49,784.24

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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.