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Finding the Fourth Proportional to 4,915.81, 7,374.81 and 1,795.81

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Solution

The fourth proportional to 4,915.81, 7,374.81 and 1,795.81 is: 2,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.81 : 7,374.81 = 1,795.81 : x
  2. Step 2: Convert to fraction form
    4,915.81/7,374.81 = 1,795.81/x
  3. Step 3: Cross multiply
    4,915.81x = 7,374.81 × 1,795.81
  4. Step 4: Simplify right side
    4,915.81x = 13,243,748.57
  5. Step 5: Solve for x
    x = 13,243,748.57/4,915.81
  6. Step 6: Final answer
    x = 2,694.12

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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.