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Finding the Fourth Proportional to 22,573.86, 31,152.15 and 13,619.63

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Solution

The fourth proportional to 22,573.86, 31,152.15 and 13,619.63 is: 18,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,573.86 : 31,152.15 = 13,619.63 : x
  2. Step 2: Convert to fraction form
    22,573.86/31,152.15 = 13,619.63/x
  3. Step 3: Cross multiply
    22,573.86x = 31,152.15 × 13,619.63
  4. Step 4: Simplify right side
    22,573.86x = 424,280,680.24
  5. Step 5: Solve for x
    x = 424,280,680.24/22,573.86
  6. Step 6: Final answer
    x = 18,795.22

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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.