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Finding the Fourth Proportional to 18,326.69, 25,291.14 and 9,943.19

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Solution

The fourth proportional to 18,326.69, 25,291.14 and 9,943.19 is: 13,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.69 : 25,291.14 = 9,943.19 : x
  2. Step 2: Convert to fraction form
    18,326.69/25,291.14 = 9,943.19/x
  3. Step 3: Cross multiply
    18,326.69x = 25,291.14 × 9,943.19
  4. Step 4: Simplify right side
    18,326.69x = 251,474,610.34
  5. Step 5: Solve for x
    x = 251,474,610.34/18,326.69
  6. Step 6: Final answer
    x = 13,721.77

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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.