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Finding the Fourth Proportional to 18,833.36, 25,989.96 and 10,874.96

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Solution

The fourth proportional to 18,833.36, 25,989.96 and 10,874.96 is: 15,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.36 : 25,989.96 = 10,874.96 : x
  2. Step 2: Convert to fraction form
    18,833.36/25,989.96 = 10,874.96/x
  3. Step 3: Cross multiply
    18,833.36x = 25,989.96 × 10,874.96
  4. Step 4: Simplify right side
    18,833.36x = 282,639,775.40
  5. Step 5: Solve for x
    x = 282,639,775.40/18,833.36
  6. Step 6: Final answer
    x = 15,007.40

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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.