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Finding the Fourth Proportional to 12,097.34, 16,695.14 and 6,720.39

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Solution

The fourth proportional to 12,097.34, 16,695.14 and 6,720.39 is: 9,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097.34 : 16,695.14 = 6,720.39 : x
  2. Step 2: Convert to fraction form
    12,097.34/16,695.14 = 6,720.39/x
  3. Step 3: Cross multiply
    12,097.34x = 16,695.14 × 6,720.39
  4. Step 4: Simplify right side
    12,097.34x = 112,197,768.43
  5. Step 5: Solve for x
    x = 112,197,768.43/12,097.34
  6. Step 6: Final answer
    x = 9,274.59

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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.