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Finding the Fourth Proportional to 32,661.44, 45,118.32 and 31,447.64

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Solution

The fourth proportional to 32,661.44, 45,118.32 and 31,447.64 is: 43,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,661.44 : 45,118.32 = 31,447.64 : x
  2. Step 2: Convert to fraction form
    32,661.44/45,118.32 = 31,447.64/x
  3. Step 3: Cross multiply
    32,661.44x = 45,118.32 × 31,447.64
  4. Step 4: Simplify right side
    32,661.44x = 1,418,864,684.76
  5. Step 5: Solve for x
    x = 1,418,864,684.76/32,661.44
  6. Step 6: Final answer
    x = 43,441.58

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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.