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Finding the Fourth Proportional to 34,991.68, 48,287.08 and 19,677.79

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Solution

The fourth proportional to 34,991.68, 48,287.08 and 19,677.79 is: 27,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,991.68 : 48,287.08 = 19,677.79 : x
  2. Step 2: Convert to fraction form
    34,991.68/48,287.08 = 19,677.79/x
  3. Step 3: Cross multiply
    34,991.68x = 48,287.08 × 19,677.79
  4. Step 4: Simplify right side
    34,991.68x = 950,182,680.13
  5. Step 5: Solve for x
    x = 950,182,680.13/34,991.68
  6. Step 6: Final answer
    x = 27,154.54

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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.