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Finding the Fourth Proportional to 12,775.59, 17,625.39 and 9,426.44

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Solution

The fourth proportional to 12,775.59, 17,625.39 and 9,426.44 is: 13,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.59 : 17,625.39 = 9,426.44 : x
  2. Step 2: Convert to fraction form
    12,775.59/17,625.39 = 9,426.44/x
  3. Step 3: Cross multiply
    12,775.59x = 17,625.39 × 9,426.44
  4. Step 4: Simplify right side
    12,775.59x = 166,144,678.24
  5. Step 5: Solve for x
    x = 166,144,678.24/12,775.59
  6. Step 6: Final answer
    x = 13,004.85

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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.