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Finding the Fourth Proportional to 5,166, 7,129.26 and 3,303

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Solution

The fourth proportional to 5,166, 7,129.26 and 3,303 is: 4,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166 : 7,129.26 = 3,303 : x
  2. Step 2: Convert to fraction form
    5,166/7,129.26 = 3,303/x
  3. Step 3: Cross multiply
    5,166x = 7,129.26 × 3,303
  4. Step 4: Simplify right side
    5,166x = 23,547,945.78
  5. Step 5: Solve for x
    x = 23,547,945.78/5,166
  6. Step 6: Final answer
    x = 4,558.26

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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.