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Finding the Fourth Proportional to 18,995.56, 26,212.50 and 10,497.58

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Solution

The fourth proportional to 18,995.56, 26,212.50 and 10,497.58 is: 14,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.56 : 26,212.50 = 10,497.58 : x
  2. Step 2: Convert to fraction form
    18,995.56/26,212.50 = 10,497.58/x
  3. Step 3: Cross multiply
    18,995.56x = 26,212.50 × 10,497.58
  4. Step 4: Simplify right side
    18,995.56x = 275,167,815.75
  5. Step 5: Solve for x
    x = 275,167,815.75/18,995.56
  6. Step 6: Final answer
    x = 14,485.90

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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.