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Finding the Fourth Proportional to 12,271.69, 18,407.54 and 3,037.69

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Solution

The fourth proportional to 12,271.69, 18,407.54 and 3,037.69 is: 4,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.69 : 18,407.54 = 3,037.69 : x
  2. Step 2: Convert to fraction form
    12,271.69/18,407.54 = 3,037.69/x
  3. Step 3: Cross multiply
    12,271.69x = 18,407.54 × 3,037.69
  4. Step 4: Simplify right side
    12,271.69x = 55,916,400.18
  5. Step 5: Solve for x
    x = 55,916,400.18/12,271.69
  6. Step 6: Final answer
    x = 4,556.54

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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.