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Finding the Fourth Proportional to 12,892.60, 19,339.14 and 10,326.52

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Solution

The fourth proportional to 12,892.60, 19,339.14 and 10,326.52 is: 15,489.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.60 : 19,339.14 = 10,326.52 : x
  2. Step 2: Convert to fraction form
    12,892.60/19,339.14 = 10,326.52/x
  3. Step 3: Cross multiply
    12,892.60x = 19,339.14 × 10,326.52
  4. Step 4: Simplify right side
    12,892.60x = 199,706,015.99
  5. Step 5: Solve for x
    x = 199,706,015.99/12,892.60
  6. Step 6: Final answer
    x = 15,489.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.