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Finding the Fourth Proportional to 50,553, 75,829.50 and 13,617

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Solution

The fourth proportional to 50,553, 75,829.50 and 13,617 is: 20,425.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,553 : 75,829.50 = 13,617 : x
  2. Step 2: Convert to fraction form
    50,553/75,829.50 = 13,617/x
  3. Step 3: Cross multiply
    50,553x = 75,829.50 × 13,617
  4. Step 4: Simplify right side
    50,553x = 1,032,570,301.50
  5. Step 5: Solve for x
    x = 1,032,570,301.50/50,553
  6. Step 6: Final answer
    x = 20,425.50

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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.