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Finding the Fourth Proportional to 7,915.98, 11,873.94 and 3,234.98

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Solution

The fourth proportional to 7,915.98, 11,873.94 and 3,234.98 is: 4,852.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.98 : 11,873.94 = 3,234.98 : x
  2. Step 2: Convert to fraction form
    7,915.98/11,873.94 = 3,234.98/x
  3. Step 3: Cross multiply
    7,915.98x = 11,873.94 × 3,234.98
  4. Step 4: Simplify right side
    7,915.98x = 38,411,958.42
  5. Step 5: Solve for x
    x = 38,411,958.42/7,915.98
  6. Step 6: Final answer
    x = 4,852.46

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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.