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Finding the Fourth Proportional to 12,573.38, 17,351.28 and 6,984.38

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Solution

The fourth proportional to 12,573.38, 17,351.28 and 6,984.38 is: 9,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.38 : 17,351.28 = 6,984.38 : x
  2. Step 2: Convert to fraction form
    12,573.38/17,351.28 = 6,984.38/x
  3. Step 3: Cross multiply
    12,573.38x = 17,351.28 × 6,984.38
  4. Step 4: Simplify right side
    12,573.38x = 121,187,933.01
  5. Step 5: Solve for x
    x = 121,187,933.01/12,573.38
  6. Step 6: Final answer
    x = 9,638.45

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Double scale
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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.