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Finding the Fourth Proportional to 12,086.01, 16,679.93 and 6,782.13

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Solution

The fourth proportional to 12,086.01, 16,679.93 and 6,782.13 is: 9,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.01 : 16,679.93 = 6,782.13 : x
  2. Step 2: Convert to fraction form
    12,086.01/16,679.93 = 6,782.13/x
  3. Step 3: Cross multiply
    12,086.01x = 16,679.93 × 6,782.13
  4. Step 4: Simplify right side
    12,086.01x = 113,125,419.74
  5. Step 5: Solve for x
    x = 113,125,419.74/12,086.01
  6. Step 6: Final answer
    x = 9,360.03

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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.