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Finding the Fourth Proportional to 8,068.72, 11,135.28 and 4,924

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Solution

The fourth proportional to 8,068.72, 11,135.28 and 4,924 is: 6,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.72 : 11,135.28 = 4,924 : x
  2. Step 2: Convert to fraction form
    8,068.72/11,135.28 = 4,924/x
  3. Step 3: Cross multiply
    8,068.72x = 11,135.28 × 4,924
  4. Step 4: Simplify right side
    8,068.72x = 54,830,118.72
  5. Step 5: Solve for x
    x = 54,830,118.72/8,068.72
  6. Step 6: Final answer
    x = 6,795.39

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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.