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Finding the Fourth Proportional to 66,246.03, 91,419.71 and 36,031.32

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Solution

The fourth proportional to 66,246.03, 91,419.71 and 36,031.32 is: 49,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,246.03 : 91,419.71 = 36,031.32 : x
  2. Step 2: Convert to fraction form
    66,246.03/91,419.71 = 36,031.32/x
  3. Step 3: Cross multiply
    66,246.03x = 91,419.71 × 36,031.32
  4. Step 4: Simplify right side
    66,246.03x = 3,293,972,645.16
  5. Step 5: Solve for x
    x = 3,293,972,645.16/66,246.03
  6. Step 6: Final answer
    x = 49,723.32

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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.