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Finding the Fourth Proportional to 22,888.50, 31,586.62 and 12,952.50

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Solution

The fourth proportional to 22,888.50, 31,586.62 and 12,952.50 is: 17,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,888.50 : 31,586.62 = 12,952.50 : x
  2. Step 2: Convert to fraction form
    22,888.50/31,586.62 = 12,952.50/x
  3. Step 3: Cross multiply
    22,888.50x = 31,586.62 × 12,952.50
  4. Step 4: Simplify right side
    22,888.50x = 409,125,695.55
  5. Step 5: Solve for x
    x = 409,125,695.55/22,888.50
  6. Step 6: Final answer
    x = 17,874.73

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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.