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Finding the Fourth Proportional to 7,072.50, 10,608.75 and 2,455.50

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Solution

The fourth proportional to 7,072.50, 10,608.75 and 2,455.50 is: 3,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.50 : 10,608.75 = 2,455.50 : x
  2. Step 2: Convert to fraction form
    7,072.50/10,608.75 = 2,455.50/x
  3. Step 3: Cross multiply
    7,072.50x = 10,608.75 × 2,455.50
  4. Step 4: Simplify right side
    7,072.50x = 26,049,785.63
  5. Step 5: Solve for x
    x = 26,049,785.63/7,072.50
  6. Step 6: Final answer
    x = 3,683.25

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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.