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Finding the Fourth Proportional to 13,295.25, 18,347.37 and 7,245.48

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Solution

The fourth proportional to 13,295.25, 18,347.37 and 7,245.48 is: 9,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.25 : 18,347.37 = 7,245.48 : x
  2. Step 2: Convert to fraction form
    13,295.25/18,347.37 = 7,245.48/x
  3. Step 3: Cross multiply
    13,295.25x = 18,347.37 × 7,245.48
  4. Step 4: Simplify right side
    13,295.25x = 132,935,564.40
  5. Step 5: Solve for x
    x = 132,935,564.40/13,295.25
  6. Step 6: Final answer
    x = 9,998.73

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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.