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Finding the Fourth Proportional to 66,007.74, 91,095.50 and 37,712.82

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Solution

The fourth proportional to 66,007.74, 91,095.50 and 37,712.82 is: 52,046.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,007.74 : 91,095.50 = 37,712.82 : x
  2. Step 2: Convert to fraction form
    66,007.74/91,095.50 = 37,712.82/x
  3. Step 3: Cross multiply
    66,007.74x = 91,095.50 × 37,712.82
  4. Step 4: Simplify right side
    66,007.74x = 3,435,468,194.31
  5. Step 5: Solve for x
    x = 3,435,468,194.31/66,007.74
  6. Step 6: Final answer
    x = 52,046.44

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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.