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Finding the Fourth Proportional to 14,135.07, 19,498.14 and 8,820.66

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Solution

The fourth proportional to 14,135.07, 19,498.14 and 8,820.66 is: 12,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.07 : 19,498.14 = 8,820.66 : x
  2. Step 2: Convert to fraction form
    14,135.07/19,498.14 = 8,820.66/x
  3. Step 3: Cross multiply
    14,135.07x = 19,498.14 × 8,820.66
  4. Step 4: Simplify right side
    14,135.07x = 171,986,463.57
  5. Step 5: Solve for x
    x = 171,986,463.57/14,135.07
  6. Step 6: Final answer
    x = 12,167.36

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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.