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Finding the Fourth Proportional to 17,915.70, 24,723.36 and 9,957.72

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Solution

The fourth proportional to 17,915.70, 24,723.36 and 9,957.72 is: 13,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915.70 : 24,723.36 = 9,957.72 : x
  2. Step 2: Convert to fraction form
    17,915.70/24,723.36 = 9,957.72/x
  3. Step 3: Cross multiply
    17,915.70x = 24,723.36 × 9,957.72
  4. Step 4: Simplify right side
    17,915.70x = 246,188,296.34
  5. Step 5: Solve for x
    x = 246,188,296.34/17,915.70
  6. Step 6: Final answer
    x = 13,741.48

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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.