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Finding the Fourth Proportional to 29,586.91, 40,830.22 and 16,839.47

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Solution

The fourth proportional to 29,586.91, 40,830.22 and 16,839.47 is: 23,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,586.91 : 40,830.22 = 16,839.47 : x
  2. Step 2: Convert to fraction form
    29,586.91/40,830.22 = 16,839.47/x
  3. Step 3: Cross multiply
    29,586.91x = 40,830.22 × 16,839.47
  4. Step 4: Simplify right side
    29,586.91x = 687,559,171.65
  5. Step 5: Solve for x
    x = 687,559,171.65/29,586.91
  6. Step 6: Final answer
    x = 23,238.63

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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.