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Finding the Fourth Proportional to 18,826.12, 25,978.93 and 10,760.65

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Solution

The fourth proportional to 18,826.12, 25,978.93 and 10,760.65 is: 14,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.12 : 25,978.93 = 10,760.65 : x
  2. Step 2: Convert to fraction form
    18,826.12/25,978.93 = 10,760.65/x
  3. Step 3: Cross multiply
    18,826.12x = 25,978.93 × 10,760.65
  4. Step 4: Simplify right side
    18,826.12x = 279,550,081.26
  5. Step 5: Solve for x
    x = 279,550,081.26/18,826.12
  6. Step 6: Final answer
    x = 14,849.05

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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.