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Finding the Fourth Proportional to 66,542.49, 91,827.15 and 36,326.64

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Solution

The fourth proportional to 66,542.49, 91,827.15 and 36,326.64 is: 50,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,542.49 : 91,827.15 = 36,326.64 : x
  2. Step 2: Convert to fraction form
    66,542.49/91,827.15 = 36,326.64/x
  3. Step 3: Cross multiply
    66,542.49x = 91,827.15 × 36,326.64
  4. Step 4: Simplify right side
    66,542.49x = 3,335,771,820.28
  5. Step 5: Solve for x
    x = 3,335,771,820.28/66,542.49
  6. Step 6: Final answer
    x = 50,129.95

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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.