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Finding the Fourth Proportional to 11,859.30, 17,784.09 and 11,373.30

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Solution

The fourth proportional to 11,859.30, 17,784.09 and 11,373.30 is: 17,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.30 : 17,784.09 = 11,373.30 : x
  2. Step 2: Convert to fraction form
    11,859.30/17,784.09 = 11,373.30/x
  3. Step 3: Cross multiply
    11,859.30x = 17,784.09 × 11,373.30
  4. Step 4: Simplify right side
    11,859.30x = 202,263,790.80
  5. Step 5: Solve for x
    x = 202,263,790.80/11,859.30
  6. Step 6: Final answer
    x = 17,055.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.