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Finding the Fourth Proportional to 22,184.55, 30,615.92 and 12,113.93

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Solution

The fourth proportional to 22,184.55, 30,615.92 and 12,113.93 is: 16,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,184.55 : 30,615.92 = 12,113.93 : x
  2. Step 2: Convert to fraction form
    22,184.55/30,615.92 = 12,113.93/x
  3. Step 3: Cross multiply
    22,184.55x = 30,615.92 × 12,113.93
  4. Step 4: Simplify right side
    22,184.55x = 370,878,898.12
  5. Step 5: Solve for x
    x = 370,878,898.12/22,184.55
  6. Step 6: Final answer
    x = 16,717.89

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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.