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Finding the Fourth Proportional to 15,094.08, 20,828.22 and 8,377.92

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Solution

The fourth proportional to 15,094.08, 20,828.22 and 8,377.92 is: 11,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,094.08 : 20,828.22 = 8,377.92 : x
  2. Step 2: Convert to fraction form
    15,094.08/20,828.22 = 8,377.92/x
  3. Step 3: Cross multiply
    15,094.08x = 20,828.22 × 8,377.92
  4. Step 4: Simplify right side
    15,094.08x = 174,497,160.90
  5. Step 5: Solve for x
    x = 174,497,160.90/15,094.08
  6. Step 6: Final answer
    x = 11,560.64

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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.