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Finding the Fourth Proportional to 12,493.14, 17,239.95 and 7,460.70

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Solution

The fourth proportional to 12,493.14, 17,239.95 and 7,460.70 is: 10,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.14 : 17,239.95 = 7,460.70 : x
  2. Step 2: Convert to fraction form
    12,493.14/17,239.95 = 7,460.70/x
  3. Step 3: Cross multiply
    12,493.14x = 17,239.95 × 7,460.70
  4. Step 4: Simplify right side
    12,493.14x = 128,622,094.97
  5. Step 5: Solve for x
    x = 128,622,094.97/12,493.14
  6. Step 6: Final answer
    x = 10,295.42

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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.