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Finding the Fourth Proportional to 8,608.56, 12,915.24 and 4,450.08

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Solution

The fourth proportional to 8,608.56, 12,915.24 and 4,450.08 is: 6,676.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.56 : 12,915.24 = 4,450.08 : x
  2. Step 2: Convert to fraction form
    8,608.56/12,915.24 = 4,450.08/x
  3. Step 3: Cross multiply
    8,608.56x = 12,915.24 × 4,450.08
  4. Step 4: Simplify right side
    8,608.56x = 57,473,851.22
  5. Step 5: Solve for x
    x = 57,473,851.22/8,608.56
  6. Step 6: Final answer
    x = 6,676.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.