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Finding the Fourth Proportional to 34,136.48, 47,108.48 and 19,986.56

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Solution

The fourth proportional to 34,136.48, 47,108.48 and 19,986.56 is: 27,581.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,136.48 : 47,108.48 = 19,986.56 : x
  2. Step 2: Convert to fraction form
    34,136.48/47,108.48 = 19,986.56/x
  3. Step 3: Cross multiply
    34,136.48x = 47,108.48 × 19,986.56
  4. Step 4: Simplify right side
    34,136.48x = 941,536,462.03
  5. Step 5: Solve for x
    x = 941,536,462.03/34,136.48
  6. Step 6: Final answer
    x = 27,581.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.