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Finding the Fourth Proportional to 71,060.67, 98,064.41 and 39,228.89

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Solution

The fourth proportional to 71,060.67, 98,064.41 and 39,228.89 is: 54,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,060.67 : 98,064.41 = 39,228.89 : x
  2. Step 2: Convert to fraction form
    71,060.67/98,064.41 = 39,228.89/x
  3. Step 3: Cross multiply
    71,060.67x = 98,064.41 × 39,228.89
  4. Step 4: Simplify right side
    71,060.67x = 3,846,957,266.34
  5. Step 5: Solve for x
    x = 3,846,957,266.34/71,060.67
  6. Step 6: Final answer
    x = 54,136.24

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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.