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Finding the Fourth Proportional to 15,889.77, 21,923.87 and 9,600.93

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Solution

The fourth proportional to 15,889.77, 21,923.87 and 9,600.93 is: 13,246.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.77 : 21,923.87 = 9,600.93 : x
  2. Step 2: Convert to fraction form
    15,889.77/21,923.87 = 9,600.93/x
  3. Step 3: Cross multiply
    15,889.77x = 21,923.87 × 9,600.93
  4. Step 4: Simplify right side
    15,889.77x = 210,489,493.19
  5. Step 5: Solve for x
    x = 210,489,493.19/15,889.77
  6. Step 6: Final answer
    x = 13,246.86

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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.