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Finding the Fourth Proportional to 23,718.56, 35,573.78 and 7,921.79

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Solution

The fourth proportional to 23,718.56, 35,573.78 and 7,921.79 is: 11,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,718.56 : 35,573.78 = 7,921.79 : x
  2. Step 2: Convert to fraction form
    23,718.56/35,573.78 = 7,921.79/x
  3. Step 3: Cross multiply
    23,718.56x = 35,573.78 × 7,921.79
  4. Step 4: Simplify right side
    23,718.56x = 281,807,990.00
  5. Step 5: Solve for x
    x = 281,807,990.00/23,718.56
  6. Step 6: Final answer
    x = 11,881.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.