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Finding the Fourth Proportional to 15,164.75, 20,927.49 and 8,877.26

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Solution

The fourth proportional to 15,164.75, 20,927.49 and 8,877.26 is: 12,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.75 : 20,927.49 = 8,877.26 : x
  2. Step 2: Convert to fraction form
    15,164.75/20,927.49 = 8,877.26/x
  3. Step 3: Cross multiply
    15,164.75x = 20,927.49 × 8,877.26
  4. Step 4: Simplify right side
    15,164.75x = 185,778,769.88
  5. Step 5: Solve for x
    x = 185,778,769.88/15,164.75
  6. Step 6: Final answer
    x = 12,250.70

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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.