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Finding the Fourth Proportional to 32,160.99, 44,371.83 and 20,839.20

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Solution

The fourth proportional to 32,160.99, 44,371.83 and 20,839.20 is: 28,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,160.99 : 44,371.83 = 20,839.20 : x
  2. Step 2: Convert to fraction form
    32,160.99/44,371.83 = 20,839.20/x
  3. Step 3: Cross multiply
    32,160.99x = 44,371.83 × 20,839.20
  4. Step 4: Simplify right side
    32,160.99x = 924,673,439.74
  5. Step 5: Solve for x
    x = 924,673,439.74/32,160.99
  6. Step 6: Final answer
    x = 28,751.40

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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.