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Finding the Fourth Proportional to 12,756.36, 17,599.44 and 7,973.04

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Solution

The fourth proportional to 12,756.36, 17,599.44 and 7,973.04 is: 11,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.36 : 17,599.44 = 7,973.04 : x
  2. Step 2: Convert to fraction form
    12,756.36/17,599.44 = 7,973.04/x
  3. Step 3: Cross multiply
    12,756.36x = 17,599.44 × 7,973.04
  4. Step 4: Simplify right side
    12,756.36x = 140,321,039.10
  5. Step 5: Solve for x
    x = 140,321,039.10/12,756.36
  6. Step 6: Final answer
    x = 11,000.08

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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.