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Finding the Fourth Proportional to 15,923.76, 23,889.22 and 5,393.18

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Solution

The fourth proportional to 15,923.76, 23,889.22 and 5,393.18 is: 8,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.76 : 23,889.22 = 5,393.18 : x
  2. Step 2: Convert to fraction form
    15,923.76/23,889.22 = 5,393.18/x
  3. Step 3: Cross multiply
    15,923.76x = 23,889.22 × 5,393.18
  4. Step 4: Simplify right side
    15,923.76x = 128,838,863.52
  5. Step 5: Solve for x
    x = 128,838,863.52/15,923.76
  6. Step 6: Final answer
    x = 8,090.98

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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.