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Finding the Fourth Proportional to 15,236.88, 22,864.05 and 8,216.86

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Solution

The fourth proportional to 15,236.88, 22,864.05 and 8,216.86 is: 12,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,236.88 : 22,864.05 = 8,216.86 : x
  2. Step 2: Convert to fraction form
    15,236.88/22,864.05 = 8,216.86/x
  3. Step 3: Cross multiply
    15,236.88x = 22,864.05 × 8,216.86
  4. Step 4: Simplify right side
    15,236.88x = 187,870,726.46
  5. Step 5: Solve for x
    x = 187,870,726.46/15,236.88
  6. Step 6: Final answer
    x = 12,330.00

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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.