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Finding the Fourth Proportional to 18,995.74, 28,494.08 and 5,848.22

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Solution

The fourth proportional to 18,995.74, 28,494.08 and 5,848.22 is: 8,772.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.74 : 28,494.08 = 5,848.22 : x
  2. Step 2: Convert to fraction form
    18,995.74/28,494.08 = 5,848.22/x
  3. Step 3: Cross multiply
    18,995.74x = 28,494.08 × 5,848.22
  4. Step 4: Simplify right side
    18,995.74x = 166,639,648.54
  5. Step 5: Solve for x
    x = 166,639,648.54/18,995.74
  6. Step 6: Final answer
    x = 8,772.47

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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.