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Finding the Fourth Proportional to 12,333.30, 18,536.40 and 12,114.60

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Solution

The fourth proportional to 12,333.30, 18,536.40 and 12,114.60 is: 18,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,333.30 : 18,536.40 = 12,114.60 : x
  2. Step 2: Convert to fraction form
    12,333.30/18,536.40 = 12,114.60/x
  3. Step 3: Cross multiply
    12,333.30x = 18,536.40 × 12,114.60
  4. Step 4: Simplify right side
    12,333.30x = 224,561,071.44
  5. Step 5: Solve for x
    x = 224,561,071.44/12,333.30
  6. Step 6: Final answer
    x = 18,207.70

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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.