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Finding the Fourth Proportional to 18,351.63, 25,320.91 and 10,798.29

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Solution

The fourth proportional to 18,351.63, 25,320.91 and 10,798.29 is: 14,899.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.63 : 25,320.91 = 10,798.29 : x
  2. Step 2: Convert to fraction form
    18,351.63/25,320.91 = 10,798.29/x
  3. Step 3: Cross multiply
    18,351.63x = 25,320.91 × 10,798.29
  4. Step 4: Simplify right side
    18,351.63x = 273,422,529.24
  5. Step 5: Solve for x
    x = 273,422,529.24/18,351.63
  6. Step 6: Final answer
    x = 14,899.09

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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.