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Finding the Fourth Proportional to 5,455.92, 7,529.22 and 2,971.92

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Solution

The fourth proportional to 5,455.92, 7,529.22 and 2,971.92 is: 4,101.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.92 : 7,529.22 = 2,971.92 : x
  2. Step 2: Convert to fraction form
    5,455.92/7,529.22 = 2,971.92/x
  3. Step 3: Cross multiply
    5,455.92x = 7,529.22 × 2,971.92
  4. Step 4: Simplify right side
    5,455.92x = 22,376,239.50
  5. Step 5: Solve for x
    x = 22,376,239.50/5,455.92
  6. Step 6: Final answer
    x = 4,101.28

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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.