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Finding the Fourth Proportional to 12,183.40, 16,590.16 and 12,183.40

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Solution

The fourth proportional to 12,183.40, 16,590.16 and 12,183.40 is: 16,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.40 : 16,590.16 = 12,183.40 : x
  2. Step 2: Convert to fraction form
    12,183.40/16,590.16 = 12,183.40/x
  3. Step 3: Cross multiply
    12,183.40x = 16,590.16 × 12,183.40
  4. Step 4: Simplify right side
    12,183.40x = 202,124,555.34
  5. Step 5: Solve for x
    x = 202,124,555.34/12,183.40
  6. Step 6: Final answer
    x = 16,590.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.