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Finding the Fourth Proportional to 18,223.22, 27,234.99 and 13,303.22

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Solution

The fourth proportional to 18,223.22, 27,234.99 and 13,303.22 is: 19,881.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.22 : 27,234.99 = 13,303.22 : x
  2. Step 2: Convert to fraction form
    18,223.22/27,234.99 = 13,303.22/x
  3. Step 3: Cross multiply
    18,223.22x = 27,234.99 × 13,303.22
  4. Step 4: Simplify right side
    18,223.22x = 362,312,997.15
  5. Step 5: Solve for x
    x = 362,312,997.15/18,223.22
  6. Step 6: Final answer
    x = 19,881.94

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.