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Finding the Fourth Proportional to 66,465.26, 91,719.52 and 36,657.26

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Solution

The fourth proportional to 66,465.26, 91,719.52 and 36,657.26 is: 50,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465.26 : 91,719.52 = 36,657.26 : x
  2. Step 2: Convert to fraction form
    66,465.26/91,719.52 = 36,657.26/x
  3. Step 3: Cross multiply
    66,465.26x = 91,719.52 × 36,657.26
  4. Step 4: Simplify right side
    66,465.26x = 3,362,186,291.72
  5. Step 5: Solve for x
    x = 3,362,186,291.72/66,465.26
  6. Step 6: Final answer
    x = 50,585.62

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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.