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Finding the Fourth Proportional to 12,395.66, 17,106.03 and 6,730.41

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Solution

The fourth proportional to 12,395.66, 17,106.03 and 6,730.41 is: 9,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.66 : 17,106.03 = 6,730.41 : x
  2. Step 2: Convert to fraction form
    12,395.66/17,106.03 = 6,730.41/x
  3. Step 3: Cross multiply
    12,395.66x = 17,106.03 × 6,730.41
  4. Step 4: Simplify right side
    12,395.66x = 115,130,595.37
  5. Step 5: Solve for x
    x = 115,130,595.37/12,395.66
  6. Step 6: Final answer
    x = 9,287.97

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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.