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Finding the Fourth Proportional to 22,608.88, 31,200.63 and 12,537.74

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Solution

The fourth proportional to 22,608.88, 31,200.63 and 12,537.74 is: 17,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,608.88 : 31,200.63 = 12,537.74 : x
  2. Step 2: Convert to fraction form
    22,608.88/31,200.63 = 12,537.74/x
  3. Step 3: Cross multiply
    22,608.88x = 31,200.63 × 12,537.74
  4. Step 4: Simplify right side
    22,608.88x = 391,185,324.09
  5. Step 5: Solve for x
    x = 391,185,324.09/22,608.88
  6. Step 6: Final answer
    x = 17,302.29

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1.5x scale

Why These Related Problems?

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