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Finding the Fourth Proportional to 19,798.52, 27,311.60 and 12,242.44

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Solution

The fourth proportional to 19,798.52, 27,311.60 and 12,242.44 is: 16,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798.52 : 27,311.60 = 12,242.44 : x
  2. Step 2: Convert to fraction form
    19,798.52/27,311.60 = 12,242.44/x
  3. Step 3: Cross multiply
    19,798.52x = 27,311.60 × 12,242.44
  4. Step 4: Simplify right side
    19,798.52x = 334,360,426.53
  5. Step 5: Solve for x
    x = 334,360,426.53/19,798.52
  6. Step 6: Final answer
    x = 16,888.15

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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.