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Finding the Fourth Proportional to 18,240,806.25, 25,172,633.39 and 9,981,591.03

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Solution

The fourth proportional to 18,240,806.25, 25,172,633.39 and 9,981,591.03 is: 13,774,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240,806.25 : 25,172,633.39 = 9,981,591.03 : x
  2. Step 2: Convert to fraction form
    18,240,806.25/25,172,633.39 = 9,981,591.03/x
  3. Step 3: Cross multiply
    18,240,806.25x = 25,172,633.39 × 9,981,591.03
  4. Step 4: Simplify right side
    18,240,806.25x = 251,262,931,597,194.53
  5. Step 5: Solve for x
    x = 251,262,931,597,194.53/18,240,806.25
  6. Step 6: Final answer
    x = 13,774,771.15

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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.