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Finding the Fourth Proportional to 18,296.47, 25,250.30 and 11,221.93

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Solution

The fourth proportional to 18,296.47, 25,250.30 and 11,221.93 is: 15,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.47 : 25,250.30 = 11,221.93 : x
  2. Step 2: Convert to fraction form
    18,296.47/25,250.30 = 11,221.93/x
  3. Step 3: Cross multiply
    18,296.47x = 25,250.30 × 11,221.93
  4. Step 4: Simplify right side
    18,296.47x = 283,357,099.08
  5. Step 5: Solve for x
    x = 283,357,099.08/18,296.47
  6. Step 6: Final answer
    x = 15,486.98

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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.