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Finding the Fourth Proportional to 9,833.32, 13,581.78 and 7,176.52

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Solution

The fourth proportional to 9,833.32, 13,581.78 and 7,176.52 is: 9,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,833.32 : 13,581.78 = 7,176.52 : x
  2. Step 2: Convert to fraction form
    9,833.32/13,581.78 = 7,176.52/x
  3. Step 3: Cross multiply
    9,833.32x = 13,581.78 × 7,176.52
  4. Step 4: Simplify right side
    9,833.32x = 97,469,915.81
  5. Step 5: Solve for x
    x = 97,469,915.81/9,833.32
  6. Step 6: Final answer
    x = 9,912.21

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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.