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Finding the Fourth Proportional to 35,388.81, 48,836.79 and 19,472.85

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Solution

The fourth proportional to 35,388.81, 48,836.79 and 19,472.85 is: 26,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,388.81 : 48,836.79 = 19,472.85 : x
  2. Step 2: Convert to fraction form
    35,388.81/48,836.79 = 19,472.85/x
  3. Step 3: Cross multiply
    35,388.81x = 48,836.79 × 19,472.85
  4. Step 4: Simplify right side
    35,388.81x = 950,991,486.15
  5. Step 5: Solve for x
    x = 950,991,486.15/35,388.81
  6. Step 6: Final answer
    x = 26,872.66

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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.