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Finding the Fourth Proportional to 12,497.88, 18,743.04 and 4,175.76

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Solution

The fourth proportional to 12,497.88, 18,743.04 and 4,175.76 is: 6,262.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.88 : 18,743.04 = 4,175.76 : x
  2. Step 2: Convert to fraction form
    12,497.88/18,743.04 = 4,175.76/x
  3. Step 3: Cross multiply
    12,497.88x = 18,743.04 × 4,175.76
  4. Step 4: Simplify right side
    12,497.88x = 78,266,436.71
  5. Step 5: Solve for x
    x = 78,266,436.71/12,497.88
  6. Step 6: Final answer
    x = 6,262.38

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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.