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Finding the Fourth Proportional to 18,965,610.01, 26,154,776.55 and 12,589,185.29

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Solution

The fourth proportional to 18,965,610.01, 26,154,776.55 and 12,589,185.29 is: 17,361,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965,610.01 : 26,154,776.55 = 12,589,185.29 : x
  2. Step 2: Convert to fraction form
    18,965,610.01/26,154,776.55 = 12,589,185.29/x
  3. Step 3: Cross multiply
    18,965,610.01x = 26,154,776.55 × 12,589,185.29
  4. Step 4: Simplify right side
    18,965,610.01x = 329,267,328,234,652.31
  5. Step 5: Solve for x
    x = 329,267,328,234,652.31/18,965,610.01
  6. Step 6: Final answer
    x = 17,361,283.30

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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.