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Finding the Fourth Proportional to 18,806,505.64, 25,964,014.26 and 14,447,027.32

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Solution

The fourth proportional to 18,806,505.64, 25,964,014.26 and 14,447,027.32 is: 19,945,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806,505.64 : 25,964,014.26 = 14,447,027.32 : x
  2. Step 2: Convert to fraction form
    18,806,505.64/25,964,014.26 = 14,447,027.32/x
  3. Step 3: Cross multiply
    18,806,505.64x = 25,964,014.26 × 14,447,027.32
  4. Step 4: Simplify right side
    18,806,505.64x = 375,102,823,351,089.62
  5. Step 5: Solve for x
    x = 375,102,823,351,089.62/18,806,505.64
  6. Step 6: Final answer
    x = 19,945,375.85

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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.