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Finding the Fourth Proportional to 18,396.48, 25,386.92 and 10,843.14

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Solution

The fourth proportional to 18,396.48, 25,386.92 and 10,843.14 is: 14,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.48 : 25,386.92 = 10,843.14 : x
  2. Step 2: Convert to fraction form
    18,396.48/25,386.92 = 10,843.14/x
  3. Step 3: Cross multiply
    18,396.48x = 25,386.92 × 10,843.14
  4. Step 4: Simplify right side
    18,396.48x = 275,273,873.51
  5. Step 5: Solve for x
    x = 275,273,873.51/18,396.48
  6. Step 6: Final answer
    x = 14,963.40

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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.