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Finding the Fourth Proportional to 64,596.34, 89,132.15 and 35,915.20

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Solution

The fourth proportional to 64,596.34, 89,132.15 and 35,915.20 is: 49,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,596.34 : 89,132.15 = 35,915.20 : x
  2. Step 2: Convert to fraction form
    64,596.34/89,132.15 = 35,915.20/x
  3. Step 3: Cross multiply
    64,596.34x = 89,132.15 × 35,915.20
  4. Step 4: Simplify right side
    64,596.34x = 3,201,198,658.61
  5. Step 5: Solve for x
    x = 3,201,198,658.61/64,596.34
  6. Step 6: Final answer
    x = 49,556.97

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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.