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Finding the Fourth Proportional to 32,472.20, 48,709.90 and 16,920.20

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Solution

The fourth proportional to 32,472.20, 48,709.90 and 16,920.20 is: 25,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,472.20 : 48,709.90 = 16,920.20 : x
  2. Step 2: Convert to fraction form
    32,472.20/48,709.90 = 16,920.20/x
  3. Step 3: Cross multiply
    32,472.20x = 48,709.90 × 16,920.20
  4. Step 4: Simplify right side
    32,472.20x = 824,181,249.98
  5. Step 5: Solve for x
    x = 824,181,249.98/32,472.20
  6. Step 6: Final answer
    x = 25,381.13

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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.