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Finding the Fourth Proportional to 4,874.86, 7,315.08 and 4,835.22

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Solution

The fourth proportional to 4,874.86, 7,315.08 and 4,835.22 is: 7,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.86 : 7,315.08 = 4,835.22 : x
  2. Step 2: Convert to fraction form
    4,874.86/7,315.08 = 4,835.22/x
  3. Step 3: Cross multiply
    4,874.86x = 7,315.08 × 4,835.22
  4. Step 4: Simplify right side
    4,874.86x = 35,370,021.12
  5. Step 5: Solve for x
    x = 35,370,021.12/4,874.86
  6. Step 6: Final answer
    x = 7,255.60

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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.