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Finding the Fourth Proportional to 19,466.40, 29,199.60 and 12,093.60

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Solution

The fourth proportional to 19,466.40, 29,199.60 and 12,093.60 is: 18,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,466.40 : 29,199.60 = 12,093.60 : x
  2. Step 2: Convert to fraction form
    19,466.40/29,199.60 = 12,093.60/x
  3. Step 3: Cross multiply
    19,466.40x = 29,199.60 × 12,093.60
  4. Step 4: Simplify right side
    19,466.40x = 353,128,282.56
  5. Step 5: Solve for x
    x = 353,128,282.56/19,466.40
  6. Step 6: Final answer
    x = 18,140.40

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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.