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Finding the Fourth Proportional to 3,374.79, 5,056.25 and 3,007.86

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Solution

The fourth proportional to 3,374.79, 5,056.25 and 3,007.86 is: 4,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.79 : 5,056.25 = 3,007.86 : x
  2. Step 2: Convert to fraction form
    3,374.79/5,056.25 = 3,007.86/x
  3. Step 3: Cross multiply
    3,374.79x = 5,056.25 × 3,007.86
  4. Step 4: Simplify right side
    3,374.79x = 15,208,496.05
  5. Step 5: Solve for x
    x = 15,208,496.05/3,374.79
  6. Step 6: Final answer
    x = 4,506.50

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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.