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Finding the Fourth Proportional to 4,915.84, 7,374.12 and 2,448.12

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Solution

The fourth proportional to 4,915.84, 7,374.12 and 2,448.12 is: 3,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.84 : 7,374.12 = 2,448.12 : x
  2. Step 2: Convert to fraction form
    4,915.84/7,374.12 = 2,448.12/x
  3. Step 3: Cross multiply
    4,915.84x = 7,374.12 × 2,448.12
  4. Step 4: Simplify right side
    4,915.84x = 18,052,730.65
  5. Step 5: Solve for x
    x = 18,052,730.65/4,915.84
  6. Step 6: Final answer
    x = 3,672.36

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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.