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Finding the Fourth Proportional to 15,797.37, 21,800.24 and 8,723.64

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Solution

The fourth proportional to 15,797.37, 21,800.24 and 8,723.64 is: 12,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.37 : 21,800.24 = 8,723.64 : x
  2. Step 2: Convert to fraction form
    15,797.37/21,800.24 = 8,723.64/x
  3. Step 3: Cross multiply
    15,797.37x = 21,800.24 × 8,723.64
  4. Step 4: Simplify right side
    15,797.37x = 190,177,478.37
  5. Step 5: Solve for x
    x = 190,177,478.37/15,797.37
  6. Step 6: Final answer
    x = 12,038.55

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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.