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Finding the Fourth Proportional to 8,561.12, 11,811.84 and 5,024.48

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Solution

The fourth proportional to 8,561.12, 11,811.84 and 5,024.48 is: 6,932.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.12 : 11,811.84 = 5,024.48 : x
  2. Step 2: Convert to fraction form
    8,561.12/11,811.84 = 5,024.48/x
  3. Step 3: Cross multiply
    8,561.12x = 11,811.84 × 5,024.48
  4. Step 4: Simplify right side
    8,561.12x = 59,348,353.84
  5. Step 5: Solve for x
    x = 59,348,353.84/8,561.12
  6. Step 6: Final answer
    x = 6,932.31

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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.