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Finding the Fourth Proportional to 13,676.58, 18,873.66 and 7,388.94

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Solution

The fourth proportional to 13,676.58, 18,873.66 and 7,388.94 is: 10,196.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.58 : 18,873.66 = 7,388.94 : x
  2. Step 2: Convert to fraction form
    13,676.58/18,873.66 = 7,388.94/x
  3. Step 3: Cross multiply
    13,676.58x = 18,873.66 × 7,388.94
  4. Step 4: Simplify right side
    13,676.58x = 139,456,341.32
  5. Step 5: Solve for x
    x = 139,456,341.32/13,676.58
  6. Step 6: Final answer
    x = 10,196.73

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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.