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Finding the Fourth Proportional to 55,657.74, 83,447.73 and 20,592.84

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Solution

The fourth proportional to 55,657.74, 83,447.73 and 20,592.84 is: 30,874.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,657.74 : 83,447.73 = 20,592.84 : x
  2. Step 2: Convert to fraction form
    55,657.74/83,447.73 = 20,592.84/x
  3. Step 3: Cross multiply
    55,657.74x = 83,447.73 × 20,592.84
  4. Step 4: Simplify right side
    55,657.74x = 1,718,425,752.25
  5. Step 5: Solve for x
    x = 1,718,425,752.25/55,657.74
  6. Step 6: Final answer
    x = 30,874.87

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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.