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Finding the Fourth Proportional to 15,956.77, 22,020.69 and 8,883.65

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Solution

The fourth proportional to 15,956.77, 22,020.69 and 8,883.65 is: 12,259.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.77 : 22,020.69 = 8,883.65 : x
  2. Step 2: Convert to fraction form
    15,956.77/22,020.69 = 8,883.65/x
  3. Step 3: Cross multiply
    15,956.77x = 22,020.69 × 8,883.65
  4. Step 4: Simplify right side
    15,956.77x = 195,624,102.72
  5. Step 5: Solve for x
    x = 195,624,102.72/15,956.77
  6. Step 6: Final answer
    x = 12,259.63

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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.