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Finding the Fourth Proportional to 66,512.66, 91,783.79 and 37,828.44

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Solution

The fourth proportional to 66,512.66, 91,783.79 and 37,828.44 is: 52,201.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.66 : 91,783.79 = 37,828.44 : x
  2. Step 2: Convert to fraction form
    66,512.66/91,783.79 = 37,828.44/x
  3. Step 3: Cross multiply
    66,512.66x = 91,783.79 × 37,828.44
  4. Step 4: Simplify right side
    66,512.66x = 3,472,037,403.85
  5. Step 5: Solve for x
    x = 3,472,037,403.85/66,512.66
  6. Step 6: Final answer
    x = 52,201.15

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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.