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Finding the Fourth Proportional to 18,843.70, 26,004.70 and 10,346.16

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Solution

The fourth proportional to 18,843.70, 26,004.70 and 10,346.16 is: 14,277.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.70 : 26,004.70 = 10,346.16 : x
  2. Step 2: Convert to fraction form
    18,843.70/26,004.70 = 10,346.16/x
  3. Step 3: Cross multiply
    18,843.70x = 26,004.70 × 10,346.16
  4. Step 4: Simplify right side
    18,843.70x = 269,048,786.95
  5. Step 5: Solve for x
    x = 269,048,786.95/18,843.70
  6. Step 6: Final answer
    x = 14,277.92

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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.