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Finding the Fourth Proportional to 5,267.12, 7,940.66 and 4,984.88

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Solution

The fourth proportional to 5,267.12, 7,940.66 and 4,984.88 is: 7,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.12 : 7,940.66 = 4,984.88 : x
  2. Step 2: Convert to fraction form
    5,267.12/7,940.66 = 4,984.88/x
  3. Step 3: Cross multiply
    5,267.12x = 7,940.66 × 4,984.88
  4. Step 4: Simplify right side
    5,267.12x = 39,583,237.22
  5. Step 5: Solve for x
    x = 39,583,237.22/5,267.12
  6. Step 6: Final answer
    x = 7,515.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.