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Finding the Fourth Proportional to 19,917, 29,875.50 and 6,066

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Solution

The fourth proportional to 19,917, 29,875.50 and 6,066 is: 9,099

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917 : 29,875.50 = 6,066 : x
  2. Step 2: Convert to fraction form
    19,917/29,875.50 = 6,066/x
  3. Step 3: Cross multiply
    19,917x = 29,875.50 × 6,066
  4. Step 4: Simplify right side
    19,917x = 181,224,783
  5. Step 5: Solve for x
    x = 181,224,783/19,917
  6. Step 6: Final answer
    x = 9,099

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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.