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Finding the Fourth Proportional to 37,687.24, 52,008.47 and 20,920.24

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Solution

The fourth proportional to 37,687.24, 52,008.47 and 20,920.24 is: 28,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,687.24 : 52,008.47 = 20,920.24 : x
  2. Step 2: Convert to fraction form
    37,687.24/52,008.47 = 20,920.24/x
  3. Step 3: Cross multiply
    37,687.24x = 52,008.47 × 20,920.24
  4. Step 4: Simplify right side
    37,687.24x = 1,088,029,674.43
  5. Step 5: Solve for x
    x = 1,088,029,674.43/37,687.24
  6. Step 6: Final answer
    x = 28,869.97

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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.