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Finding the Fourth Proportional to 32,635.44, 45,078.12 and 28,378.08

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Solution

The fourth proportional to 32,635.44, 45,078.12 and 28,378.08 is: 39,197.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,635.44 : 45,078.12 = 28,378.08 : x
  2. Step 2: Convert to fraction form
    32,635.44/45,078.12 = 28,378.08/x
  3. Step 3: Cross multiply
    32,635.44x = 45,078.12 × 28,378.08
  4. Step 4: Simplify right side
    32,635.44x = 1,279,230,495.61
  5. Step 5: Solve for x
    x = 1,279,230,495.61/32,635.44
  6. Step 6: Final answer
    x = 39,197.59

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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.