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Finding the Fourth Proportional to 7,967.87, 11,000.58 and 5,136.25

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Solution

The fourth proportional to 7,967.87, 11,000.58 and 5,136.25 is: 7,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.87 : 11,000.58 = 5,136.25 : x
  2. Step 2: Convert to fraction form
    7,967.87/11,000.58 = 5,136.25/x
  3. Step 3: Cross multiply
    7,967.87x = 11,000.58 × 5,136.25
  4. Step 4: Simplify right side
    7,967.87x = 56,501,729.03
  5. Step 5: Solve for x
    x = 56,501,729.03/7,967.87
  6. Step 6: Final answer
    x = 7,091.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.