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Finding the Fourth Proportional to 23,107.40, 34,661.10 and 11,443.40

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Solution

The fourth proportional to 23,107.40, 34,661.10 and 11,443.40 is: 17,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,107.40 : 34,661.10 = 11,443.40 : x
  2. Step 2: Convert to fraction form
    23,107.40/34,661.10 = 11,443.40/x
  3. Step 3: Cross multiply
    23,107.40x = 34,661.10 × 11,443.40
  4. Step 4: Simplify right side
    23,107.40x = 396,640,831.74
  5. Step 5: Solve for x
    x = 396,640,831.74/23,107.40
  6. Step 6: Final answer
    x = 17,165.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.