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Finding the Fourth Proportional to 18,349.59, 27,477.66 and 12,090.63

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Solution

The fourth proportional to 18,349.59, 27,477.66 and 12,090.63 is: 18,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.59 : 27,477.66 = 12,090.63 : x
  2. Step 2: Convert to fraction form
    18,349.59/27,477.66 = 12,090.63/x
  3. Step 3: Cross multiply
    18,349.59x = 27,477.66 × 12,090.63
  4. Step 4: Simplify right side
    18,349.59x = 332,222,220.33
  5. Step 5: Solve for x
    x = 332,222,220.33/18,349.59
  6. Step 6: Final answer
    x = 18,105.16

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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.