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Finding the Fourth Proportional to 4,746.02, 7,121.46 and 2,556.86

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Solution

The fourth proportional to 4,746.02, 7,121.46 and 2,556.86 is: 3,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,746.02 : 7,121.46 = 2,556.86 : x
  2. Step 2: Convert to fraction form
    4,746.02/7,121.46 = 2,556.86/x
  3. Step 3: Cross multiply
    4,746.02x = 7,121.46 × 2,556.86
  4. Step 4: Simplify right side
    4,746.02x = 18,208,576.22
  5. Step 5: Solve for x
    x = 18,208,576.22/4,746.02
  6. Step 6: Final answer
    x = 3,836.60

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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.