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Finding the Fourth Proportional to 11,858.78, 17,788.16 and 4,464.89

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Solution

The fourth proportional to 11,858.78, 17,788.16 and 4,464.89 is: 6,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.78 : 17,788.16 = 4,464.89 : x
  2. Step 2: Convert to fraction form
    11,858.78/17,788.16 = 4,464.89/x
  3. Step 3: Cross multiply
    11,858.78x = 17,788.16 × 4,464.89
  4. Step 4: Simplify right side
    11,858.78x = 79,422,233.34
  5. Step 5: Solve for x
    x = 79,422,233.34/11,858.78
  6. Step 6: Final answer
    x = 6,697.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.