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Finding the Fourth Proportional to 18,223.40, 27,302.70 and 14,918.60

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Solution

The fourth proportional to 18,223.40, 27,302.70 and 14,918.60 is: 22,351.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.40 : 27,302.70 = 14,918.60 : x
  2. Step 2: Convert to fraction form
    18,223.40/27,302.70 = 14,918.60/x
  3. Step 3: Cross multiply
    18,223.40x = 27,302.70 × 14,918.60
  4. Step 4: Simplify right side
    18,223.40x = 407,318,060.22
  5. Step 5: Solve for x
    x = 407,318,060.22/18,223.40
  6. Step 6: Final answer
    x = 22,351.38

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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.