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Finding the Fourth Proportional to 35,853.66, 49,478.94 and 19,939.68

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Solution

The fourth proportional to 35,853.66, 49,478.94 and 19,939.68 is: 27,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,853.66 : 49,478.94 = 19,939.68 : x
  2. Step 2: Convert to fraction form
    35,853.66/49,478.94 = 19,939.68/x
  3. Step 3: Cross multiply
    35,853.66x = 49,478.94 × 19,939.68
  4. Step 4: Simplify right side
    35,853.66x = 986,594,230.34
  5. Step 5: Solve for x
    x = 986,594,230.34/35,853.66
  6. Step 6: Final answer
    x = 27,517.25

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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.