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Finding the Fourth Proportional to 46,676.48, 69,993.60 and 13,388.88

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Solution

The fourth proportional to 46,676.48, 69,993.60 and 13,388.88 is: 20,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,676.48 : 69,993.60 = 13,388.88 : x
  2. Step 2: Convert to fraction form
    46,676.48/69,993.60 = 13,388.88/x
  3. Step 3: Cross multiply
    46,676.48x = 69,993.60 × 13,388.88
  4. Step 4: Simplify right side
    46,676.48x = 937,135,911.17
  5. Step 5: Solve for x
    x = 937,135,911.17/46,676.48
  6. Step 6: Final answer
    x = 20,077.26

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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.