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Finding the Fourth Proportional to 19,368.44, 26,728.44 and 10,984.94

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Solution

The fourth proportional to 19,368.44, 26,728.44 and 10,984.94 is: 15,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.44 : 26,728.44 = 10,984.94 : x
  2. Step 2: Convert to fraction form
    19,368.44/26,728.44 = 10,984.94/x
  3. Step 3: Cross multiply
    19,368.44x = 26,728.44 × 10,984.94
  4. Step 4: Simplify right side
    19,368.44x = 293,610,309.69
  5. Step 5: Solve for x
    x = 293,610,309.69/19,368.44
  6. Step 6: Final answer
    x = 15,159.21

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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.