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Finding the Fourth Proportional to 8,493.76, 11,719.59 and 4,955.38

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Solution

The fourth proportional to 8,493.76, 11,719.59 and 4,955.38 is: 6,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.76 : 11,719.59 = 4,955.38 : x
  2. Step 2: Convert to fraction form
    8,493.76/11,719.59 = 4,955.38/x
  3. Step 3: Cross multiply
    8,493.76x = 11,719.59 × 4,955.38
  4. Step 4: Simplify right side
    8,493.76x = 58,074,974.01
  5. Step 5: Solve for x
    x = 58,074,974.01/8,493.76
  6. Step 6: Final answer
    x = 6,837.37

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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.