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Finding the Fourth Proportional to 14,448.24, 19,941.24 and 9,139.44

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Solution

The fourth proportional to 14,448.24, 19,941.24 and 9,139.44 is: 12,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,448.24 : 19,941.24 = 9,139.44 : x
  2. Step 2: Convert to fraction form
    14,448.24/19,941.24 = 9,139.44/x
  3. Step 3: Cross multiply
    14,448.24x = 19,941.24 × 9,139.44
  4. Step 4: Simplify right side
    14,448.24x = 182,251,766.51
  5. Step 5: Solve for x
    x = 182,251,766.51/14,448.24
  6. Step 6: Final answer
    x = 12,614.12

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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.