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Finding the Fourth Proportional to 12,395.97, 17,105.63 and 7,359.93

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Solution

The fourth proportional to 12,395.97, 17,105.63 and 7,359.93 is: 10,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.97 : 17,105.63 = 7,359.93 : x
  2. Step 2: Convert to fraction form
    12,395.97/17,105.63 = 7,359.93/x
  3. Step 3: Cross multiply
    12,395.97x = 17,105.63 × 7,359.93
  4. Step 4: Simplify right side
    12,395.97x = 125,896,202.61
  5. Step 5: Solve for x
    x = 125,896,202.61/12,395.97
  6. Step 6: Final answer
    x = 10,156.22

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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.