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Finding the Fourth Proportional to 13,474.54, 18,588.18 and 9,004.29

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Solution

The fourth proportional to 13,474.54, 18,588.18 and 9,004.29 is: 12,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.54 : 18,588.18 = 9,004.29 : x
  2. Step 2: Convert to fraction form
    13,474.54/18,588.18 = 9,004.29/x
  3. Step 3: Cross multiply
    13,474.54x = 18,588.18 × 9,004.29
  4. Step 4: Simplify right side
    13,474.54x = 167,373,270.35
  5. Step 5: Solve for x
    x = 167,373,270.35/13,474.54
  6. Step 6: Final answer
    x = 12,421.45

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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.