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Finding the Fourth Proportional to 18,100,868.34, 24,978,672.57 and 10,261,107.78

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Solution

The fourth proportional to 18,100,868.34, 24,978,672.57 and 10,261,107.78 is: 14,160,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100,868.34 : 24,978,672.57 = 10,261,107.78 : x
  2. Step 2: Convert to fraction form
    18,100,868.34/24,978,672.57 = 10,261,107.78/x
  3. Step 3: Cross multiply
    18,100,868.34x = 24,978,672.57 × 10,261,107.78
  4. Step 4: Simplify right side
    18,100,868.34x = 256,308,851,442,099.59
  5. Step 5: Solve for x
    x = 256,308,851,442,099.59/18,100,868.34
  6. Step 6: Final answer
    x = 14,160,030.70

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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.