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Finding the Fourth Proportional to 6,893.96, 9,515.70 and 4,101.32

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Solution

The fourth proportional to 6,893.96, 9,515.70 and 4,101.32 is: 5,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.96 : 9,515.70 = 4,101.32 : x
  2. Step 2: Convert to fraction form
    6,893.96/9,515.70 = 4,101.32/x
  3. Step 3: Cross multiply
    6,893.96x = 9,515.70 × 4,101.32
  4. Step 4: Simplify right side
    6,893.96x = 39,026,930.72
  5. Step 5: Solve for x
    x = 39,026,930.72/6,893.96
  6. Step 6: Final answer
    x = 5,661.03

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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.