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Finding the Fourth Proportional to 12,649.13, 17,455.86 and 7,060.13

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Solution

The fourth proportional to 12,649.13, 17,455.86 and 7,060.13 is: 9,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.13 : 17,455.86 = 7,060.13 : x
  2. Step 2: Convert to fraction form
    12,649.13/17,455.86 = 7,060.13/x
  3. Step 3: Cross multiply
    12,649.13x = 17,455.86 × 7,060.13
  4. Step 4: Simplify right side
    12,649.13x = 123,240,553.58
  5. Step 5: Solve for x
    x = 123,240,553.58/12,649.13
  6. Step 6: Final answer
    x = 9,743.01

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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.