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Finding the Fourth Proportional to 12,387.06, 17,092.35 and 6,798.06

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Solution

The fourth proportional to 12,387.06, 17,092.35 and 6,798.06 is: 9,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.06 : 17,092.35 = 6,798.06 : x
  2. Step 2: Convert to fraction form
    12,387.06/17,092.35 = 6,798.06/x
  3. Step 3: Cross multiply
    12,387.06x = 17,092.35 × 6,798.06
  4. Step 4: Simplify right side
    12,387.06x = 116,194,820.84
  5. Step 5: Solve for x
    x = 116,194,820.84/12,387.06
  6. Step 6: Final answer
    x = 9,380.34

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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.