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Finding the Fourth Proportional to 7,379, 11,070.93 and 2,995.28

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Solution

The fourth proportional to 7,379, 11,070.93 and 2,995.28 is: 4,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379 : 11,070.93 = 2,995.28 : x
  2. Step 2: Convert to fraction form
    7,379/11,070.93 = 2,995.28/x
  3. Step 3: Cross multiply
    7,379x = 11,070.93 × 2,995.28
  4. Step 4: Simplify right side
    7,379x = 33,160,535.21
  5. Step 5: Solve for x
    x = 33,160,535.21/7,379
  6. Step 6: Final answer
    x = 4,493.91

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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.