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Finding the Fourth Proportional to 14,418.34, 19,886.11 and 9,111.22

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Solution

The fourth proportional to 14,418.34, 19,886.11 and 9,111.22 is: 12,566.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.34 : 19,886.11 = 9,111.22 : x
  2. Step 2: Convert to fraction form
    14,418.34/19,886.11 = 9,111.22/x
  3. Step 3: Cross multiply
    14,418.34x = 19,886.11 × 9,111.22
  4. Step 4: Simplify right side
    14,418.34x = 181,186,723.15
  5. Step 5: Solve for x
    x = 181,186,723.15/14,418.34
  6. Step 6: Final answer
    x = 12,566.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.