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Finding the Fourth Proportional to 32,972.80, 49,459.20 and 18,227.20

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Solution

The fourth proportional to 32,972.80, 49,459.20 and 18,227.20 is: 27,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,972.80 : 49,459.20 = 18,227.20 : x
  2. Step 2: Convert to fraction form
    32,972.80/49,459.20 = 18,227.20/x
  3. Step 3: Cross multiply
    32,972.80x = 49,459.20 × 18,227.20
  4. Step 4: Simplify right side
    32,972.80x = 901,502,730.24
  5. Step 5: Solve for x
    x = 901,502,730.24/32,972.80
  6. Step 6: Final answer
    x = 27,340.80

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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.