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Finding the Fourth Proportional to 12,756.37, 17,599.44 and 7,973.05

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Solution

The fourth proportional to 12,756.37, 17,599.44 and 7,973.05 is: 11,000.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.37 : 17,599.44 = 7,973.05 : x
  2. Step 2: Convert to fraction form
    12,756.37/17,599.44 = 7,973.05/x
  3. Step 3: Cross multiply
    12,756.37x = 17,599.44 × 7,973.05
  4. Step 4: Simplify right side
    12,756.37x = 140,321,215.09
  5. Step 5: Solve for x
    x = 140,321,215.09/12,756.37
  6. Step 6: Final answer
    x = 11,000.09

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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.