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Finding the Fourth Proportional to 35,325.49, 52,980.01 and 13,149.31

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Solution

The fourth proportional to 35,325.49, 52,980.01 and 13,149.31 is: 19,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,325.49 : 52,980.01 = 13,149.31 : x
  2. Step 2: Convert to fraction form
    35,325.49/52,980.01 = 13,149.31/x
  3. Step 3: Cross multiply
    35,325.49x = 52,980.01 × 13,149.31
  4. Step 4: Simplify right side
    35,325.49x = 696,650,575.29
  5. Step 5: Solve for x
    x = 696,650,575.29/35,325.49
  6. Step 6: Final answer
    x = 19,720.90

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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.