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Finding the Fourth Proportional to 7,091.96, 10,629.58 and 2,929.96

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Solution

The fourth proportional to 7,091.96, 10,629.58 and 2,929.96 is: 4,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.96 : 10,629.58 = 2,929.96 : x
  2. Step 2: Convert to fraction form
    7,091.96/10,629.58 = 2,929.96/x
  3. Step 3: Cross multiply
    7,091.96x = 10,629.58 × 2,929.96
  4. Step 4: Simplify right side
    7,091.96x = 31,144,244.22
  5. Step 5: Solve for x
    x = 31,144,244.22/7,091.96
  6. Step 6: Final answer
    x = 4,391.49

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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.