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Finding the Fourth Proportional to 32,108.64, 48,191.92 and 18,972.96

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Solution

The fourth proportional to 32,108.64, 48,191.92 and 18,972.96 is: 28,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,108.64 : 48,191.92 = 18,972.96 : x
  2. Step 2: Convert to fraction form
    32,108.64/48,191.92 = 18,972.96/x
  3. Step 3: Cross multiply
    32,108.64x = 48,191.92 × 18,972.96
  4. Step 4: Simplify right side
    32,108.64x = 914,343,370.48
  5. Step 5: Solve for x
    x = 914,343,370.48/32,108.64
  6. Step 6: Final answer
    x = 28,476.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.