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Finding the Fourth Proportional to 12,287.98, 18,424.59 and 4,893.58

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Solution

The fourth proportional to 12,287.98, 18,424.59 and 4,893.58 is: 7,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.98 : 18,424.59 = 4,893.58 : x
  2. Step 2: Convert to fraction form
    12,287.98/18,424.59 = 4,893.58/x
  3. Step 3: Cross multiply
    12,287.98x = 18,424.59 × 4,893.58
  4. Step 4: Simplify right side
    12,287.98x = 90,162,205.13
  5. Step 5: Solve for x
    x = 90,162,205.13/12,287.98
  6. Step 6: Final answer
    x = 7,337.43

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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.