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Finding the Fourth Proportional to 15,794.17, 21,798.39 and 9,747.94

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Solution

The fourth proportional to 15,794.17, 21,798.39 and 9,747.94 is: 13,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.17 : 21,798.39 = 9,747.94 : x
  2. Step 2: Convert to fraction form
    15,794.17/21,798.39 = 9,747.94/x
  3. Step 3: Cross multiply
    15,794.17x = 21,798.39 × 9,747.94
  4. Step 4: Simplify right side
    15,794.17x = 212,489,397.82
  5. Step 5: Solve for x
    x = 212,489,397.82/15,794.17
  6. Step 6: Final answer
    x = 13,453.66

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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.