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Finding the Fourth Proportional to 18,825,708.12, 25,978,385.76 and 10,564,999.05

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Solution

The fourth proportional to 18,825,708.12, 25,978,385.76 and 10,564,999.05 is: 14,579,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825,708.12 : 25,978,385.76 = 10,564,999.05 : x
  2. Step 2: Convert to fraction form
    18,825,708.12/25,978,385.76 = 10,564,999.05/x
  3. Step 3: Cross multiply
    18,825,708.12x = 25,978,385.76 × 10,564,999.05
  4. Step 4: Simplify right side
    18,825,708.12x = 274,461,620,874,933.56
  5. Step 5: Solve for x
    x = 274,461,620,874,933.56/18,825,708.12
  6. Step 6: Final answer
    x = 14,579,086.17

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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.