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Finding the Fourth Proportional to 29,697.54, 40,987.53 and 16,953

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Solution

The fourth proportional to 29,697.54, 40,987.53 and 16,953 is: 23,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,697.54 : 40,987.53 = 16,953 : x
  2. Step 2: Convert to fraction form
    29,697.54/40,987.53 = 16,953/x
  3. Step 3: Cross multiply
    29,697.54x = 40,987.53 × 16,953
  4. Step 4: Simplify right side
    29,697.54x = 694,861,596.09
  5. Step 5: Solve for x
    x = 694,861,596.09/29,697.54
  6. Step 6: Final answer
    x = 23,397.95

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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.