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Finding the Fourth Proportional to 5,915.76, 8,866.74 and 4,450.20

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Solution

The fourth proportional to 5,915.76, 8,866.74 and 4,450.20 is: 6,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.76 : 8,866.74 = 4,450.20 : x
  2. Step 2: Convert to fraction form
    5,915.76/8,866.74 = 4,450.20/x
  3. Step 3: Cross multiply
    5,915.76x = 8,866.74 × 4,450.20
  4. Step 4: Simplify right side
    5,915.76x = 39,458,766.35
  5. Step 5: Solve for x
    x = 39,458,766.35/5,915.76
  6. Step 6: Final answer
    x = 6,670.11

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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.