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Finding the Fourth Proportional to 12,197.70, 18,260.91 and 11,030.39

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Solution

The fourth proportional to 12,197.70, 18,260.91 and 11,030.39 is: 16,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.70 : 18,260.91 = 11,030.39 : x
  2. Step 2: Convert to fraction form
    12,197.70/18,260.91 = 11,030.39/x
  3. Step 3: Cross multiply
    12,197.70x = 18,260.91 × 11,030.39
  4. Step 4: Simplify right side
    12,197.70x = 201,424,867.75
  5. Step 5: Solve for x
    x = 201,424,867.75/12,197.70
  6. Step 6: Final answer
    x = 16,513.35

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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.