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Finding the Fourth Proportional to 35,471.34, 48,948.44 and 20,360.79

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Solution

The fourth proportional to 35,471.34, 48,948.44 and 20,360.79 is: 28,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,471.34 : 48,948.44 = 20,360.79 : x
  2. Step 2: Convert to fraction form
    35,471.34/48,948.44 = 20,360.79/x
  3. Step 3: Cross multiply
    35,471.34x = 48,948.44 × 20,360.79
  4. Step 4: Simplify right side
    35,471.34x = 996,628,805.86
  5. Step 5: Solve for x
    x = 996,628,805.86/35,471.34
  6. Step 6: Final answer
    x = 28,096.73

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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.