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Finding the Fourth Proportional to 22,506.66, 31,026.24 and 15,771.92

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Solution

The fourth proportional to 22,506.66, 31,026.24 and 15,771.92 is: 21,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,506.66 : 31,026.24 = 15,771.92 : x
  2. Step 2: Convert to fraction form
    22,506.66/31,026.24 = 15,771.92/x
  3. Step 3: Cross multiply
    22,506.66x = 31,026.24 × 15,771.92
  4. Step 4: Simplify right side
    22,506.66x = 489,343,220.05
  5. Step 5: Solve for x
    x = 489,343,220.05/22,506.66
  6. Step 6: Final answer
    x = 21,742.15

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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.