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Finding the Fourth Proportional to 18,866,707.16, 26,036,978.44 and 10,609,367.92

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Solution

The fourth proportional to 18,866,707.16, 26,036,978.44 and 10,609,367.92 is: 14,641,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866,707.16 : 26,036,978.44 = 10,609,367.92 : x
  2. Step 2: Convert to fraction form
    18,866,707.16/26,036,978.44 = 10,609,367.92/x
  3. Step 3: Cross multiply
    18,866,707.16x = 26,036,978.44 × 10,609,367.92
  4. Step 4: Simplify right side
    18,866,707.16x = 276,235,883,795,067.66
  5. Step 5: Solve for x
    x = 276,235,883,795,067.66/18,866,707.16
  6. Step 6: Final answer
    x = 14,641,446.51

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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.