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Finding the Fourth Proportional to 17,999.42, 27,011.18 and 7,469.45

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Solution

The fourth proportional to 17,999.42, 27,011.18 and 7,469.45 is: 11,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,999.42 : 27,011.18 = 7,469.45 : x
  2. Step 2: Convert to fraction form
    17,999.42/27,011.18 = 7,469.45/x
  3. Step 3: Cross multiply
    17,999.42x = 27,011.18 × 7,469.45
  4. Step 4: Simplify right side
    17,999.42x = 201,758,701.55
  5. Step 5: Solve for x
    x = 201,758,701.55/17,999.42
  6. Step 6: Final answer
    x = 11,209.18

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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.