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Finding the Fourth Proportional to 35,452.79, 53,129.03 and 19,664.76

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Solution

The fourth proportional to 35,452.79, 53,129.03 and 19,664.76 is: 29,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,452.79 : 53,129.03 = 19,664.76 : x
  2. Step 2: Convert to fraction form
    35,452.79/53,129.03 = 19,664.76/x
  3. Step 3: Cross multiply
    35,452.79x = 53,129.03 × 19,664.76
  4. Step 4: Simplify right side
    35,452.79x = 1,044,769,525.66
  5. Step 5: Solve for x
    x = 1,044,769,525.66/35,452.79
  6. Step 6: Final answer
    x = 29,469.32

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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.