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Finding the Fourth Proportional to 32,672.32, 45,103.64 and 21,913.27

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Solution

The fourth proportional to 32,672.32, 45,103.64 and 21,913.27 is: 30,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,672.32 : 45,103.64 = 21,913.27 : x
  2. Step 2: Convert to fraction form
    32,672.32/45,103.64 = 21,913.27/x
  3. Step 3: Cross multiply
    32,672.32x = 45,103.64 × 21,913.27
  4. Step 4: Simplify right side
    32,672.32x = 988,368,241.30
  5. Step 5: Solve for x
    x = 988,368,241.30/32,672.32
  6. Step 6: Final answer
    x = 30,250.94

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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.