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Finding the Fourth Proportional to 48,326.60, 66,661.22 and 31,973.78

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Solution

The fourth proportional to 48,326.60, 66,661.22 and 31,973.78 is: 44,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,326.60 : 66,661.22 = 31,973.78 : x
  2. Step 2: Convert to fraction form
    48,326.60/66,661.22 = 31,973.78/x
  3. Step 3: Cross multiply
    48,326.60x = 66,661.22 × 31,973.78
  4. Step 4: Simplify right side
    48,326.60x = 2,131,410,689.64
  5. Step 5: Solve for x
    x = 2,131,410,689.64/48,326.60
  6. Step 6: Final answer
    x = 44,104.30

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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.