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Finding the Fourth Proportional to 13,239.68, 19,860.19 and 5,844.20

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Solution

The fourth proportional to 13,239.68, 19,860.19 and 5,844.20 is: 8,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.68 : 19,860.19 = 5,844.20 : x
  2. Step 2: Convert to fraction form
    13,239.68/19,860.19 = 5,844.20/x
  3. Step 3: Cross multiply
    13,239.68x = 19,860.19 × 5,844.20
  4. Step 4: Simplify right side
    13,239.68x = 116,066,808.49
  5. Step 5: Solve for x
    x = 116,066,808.49/13,239.68
  6. Step 6: Final answer
    x = 8,766.59

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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.