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Finding the Fourth Proportional to 64,136.61, 88,540.09 and 40,276.44

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Solution

The fourth proportional to 64,136.61, 88,540.09 and 40,276.44 is: 55,601.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,136.61 : 88,540.09 = 40,276.44 : x
  2. Step 2: Convert to fraction form
    64,136.61/88,540.09 = 40,276.44/x
  3. Step 3: Cross multiply
    64,136.61x = 88,540.09 × 40,276.44
  4. Step 4: Simplify right side
    64,136.61x = 3,566,079,521.79
  5. Step 5: Solve for x
    x = 3,566,079,521.79/64,136.61
  6. Step 6: Final answer
    x = 55,601.31

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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.