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Finding the Fourth Proportional to 15,959.84, 23,939.82 and 5,571.59

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Solution

The fourth proportional to 15,959.84, 23,939.82 and 5,571.59 is: 8,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959.84 : 23,939.82 = 5,571.59 : x
  2. Step 2: Convert to fraction form
    15,959.84/23,939.82 = 5,571.59/x
  3. Step 3: Cross multiply
    15,959.84x = 23,939.82 × 5,571.59
  4. Step 4: Simplify right side
    15,959.84x = 133,382,742.01
  5. Step 5: Solve for x
    x = 133,382,742.01/15,959.84
  6. Step 6: Final answer
    x = 8,357.40

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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.