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Finding the Fourth Proportional to 17,915.40, 24,723.56 and 9,849.40

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Solution

The fourth proportional to 17,915.40, 24,723.56 and 9,849.40 is: 13,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915.40 : 24,723.56 = 9,849.40 : x
  2. Step 2: Convert to fraction form
    17,915.40/24,723.56 = 9,849.40/x
  3. Step 3: Cross multiply
    17,915.40x = 24,723.56 × 9,849.40
  4. Step 4: Simplify right side
    17,915.40x = 243,512,231.86
  5. Step 5: Solve for x
    x = 243,512,231.86/17,915.40
  6. Step 6: Final answer
    x = 13,592.34

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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.