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Finding the Fourth Proportional to 32,900.96, 45,400.56 and 18,750.80

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Solution

The fourth proportional to 32,900.96, 45,400.56 and 18,750.80 is: 25,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,900.96 : 45,400.56 = 18,750.80 : x
  2. Step 2: Convert to fraction form
    32,900.96/45,400.56 = 18,750.80/x
  3. Step 3: Cross multiply
    32,900.96x = 45,400.56 × 18,750.80
  4. Step 4: Simplify right side
    32,900.96x = 851,296,820.45
  5. Step 5: Solve for x
    x = 851,296,820.45/32,900.96
  6. Step 6: Final answer
    x = 25,874.53

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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.