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Finding the Fourth Proportional to 8,375.13, 11,557.76 and 4,838.13

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Solution

The fourth proportional to 8,375.13, 11,557.76 and 4,838.13 is: 6,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.13 : 11,557.76 = 4,838.13 : x
  2. Step 2: Convert to fraction form
    8,375.13/11,557.76 = 4,838.13/x
  3. Step 3: Cross multiply
    8,375.13x = 11,557.76 × 4,838.13
  4. Step 4: Simplify right side
    8,375.13x = 55,917,921.20
  5. Step 5: Solve for x
    x = 55,917,921.20/8,375.13
  6. Step 6: Final answer
    x = 6,676.66

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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.