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Finding the Fourth Proportional to 12,371.68, 18,556.68 and 5,799.32

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Solution

The fourth proportional to 12,371.68, 18,556.68 and 5,799.32 is: 8,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.68 : 18,556.68 = 5,799.32 : x
  2. Step 2: Convert to fraction form
    12,371.68/18,556.68 = 5,799.32/x
  3. Step 3: Cross multiply
    12,371.68x = 18,556.68 × 5,799.32
  4. Step 4: Simplify right side
    12,371.68x = 107,616,125.46
  5. Step 5: Solve for x
    x = 107,616,125.46/12,371.68
  6. Step 6: Final answer
    x = 8,698.59

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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.