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Finding the Fourth Proportional to 15,076.23, 20,806.48 and 8,364.02

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Solution

The fourth proportional to 15,076.23, 20,806.48 and 8,364.02 is: 11,543.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.23 : 20,806.48 = 8,364.02 : x
  2. Step 2: Convert to fraction form
    15,076.23/20,806.48 = 8,364.02/x
  3. Step 3: Cross multiply
    15,076.23x = 20,806.48 × 8,364.02
  4. Step 4: Simplify right side
    15,076.23x = 174,025,814.85
  5. Step 5: Solve for x
    x = 174,025,814.85/15,076.23
  6. Step 6: Final answer
    x = 11,543.06

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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.