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Finding the Fourth Proportional to 66,305.66, 91,494.81 and 37,619.51

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Solution

The fourth proportional to 66,305.66, 91,494.81 and 37,619.51 is: 51,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305.66 : 91,494.81 = 37,619.51 : x
  2. Step 2: Convert to fraction form
    66,305.66/91,494.81 = 37,619.51/x
  3. Step 3: Cross multiply
    66,305.66x = 91,494.81 × 37,619.51
  4. Step 4: Simplify right side
    66,305.66x = 3,441,989,462.27
  5. Step 5: Solve for x
    x = 3,441,989,462.27/66,305.66
  6. Step 6: Final answer
    x = 51,910.95

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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.