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Finding the Fourth Proportional to 12,172.04, 16,796.64 and 6,867.32

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Solution

The fourth proportional to 12,172.04, 16,796.64 and 6,867.32 is: 9,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.04 : 16,796.64 = 6,867.32 : x
  2. Step 2: Convert to fraction form
    12,172.04/16,796.64 = 6,867.32/x
  3. Step 3: Cross multiply
    12,172.04x = 16,796.64 × 6,867.32
  4. Step 4: Simplify right side
    12,172.04x = 115,347,901.80
  5. Step 5: Solve for x
    x = 115,347,901.80/12,172.04
  6. Step 6: Final answer
    x = 9,476.46

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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.