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Finding the Fourth Proportional to 12,375.47, 17,078.24 and 6,710.22

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Solution

The fourth proportional to 12,375.47, 17,078.24 and 6,710.22 is: 9,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.47 : 17,078.24 = 6,710.22 : x
  2. Step 2: Convert to fraction form
    12,375.47/17,078.24 = 6,710.22/x
  3. Step 3: Cross multiply
    12,375.47x = 17,078.24 × 6,710.22
  4. Step 4: Simplify right side
    12,375.47x = 114,598,714.06
  5. Step 5: Solve for x
    x = 114,598,714.06/12,375.47
  6. Step 6: Final answer
    x = 9,260.15

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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.