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Finding the Fourth Proportional to 18,293.56, 25,244.94 and 9,909.88

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Solution

The fourth proportional to 18,293.56, 25,244.94 and 9,909.88 is: 13,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.56 : 25,244.94 = 9,909.88 : x
  2. Step 2: Convert to fraction form
    18,293.56/25,244.94 = 9,909.88/x
  3. Step 3: Cross multiply
    18,293.56x = 25,244.94 × 9,909.88
  4. Step 4: Simplify right side
    18,293.56x = 250,174,326.01
  5. Step 5: Solve for x
    x = 250,174,326.01/18,293.56
  6. Step 6: Final answer
    x = 13,675.54

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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.