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Finding the Fourth Proportional to 35,321.40, 53,010.90 and 34,169.40

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Solution

The fourth proportional to 35,321.40, 53,010.90 and 34,169.40 is: 51,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,321.40 : 53,010.90 = 34,169.40 : x
  2. Step 2: Convert to fraction form
    35,321.40/53,010.90 = 34,169.40/x
  3. Step 3: Cross multiply
    35,321.40x = 53,010.90 × 34,169.40
  4. Step 4: Simplify right side
    35,321.40x = 1,811,350,646.46
  5. Step 5: Solve for x
    x = 1,811,350,646.46/35,321.40
  6. Step 6: Final answer
    x = 51,281.96

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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.