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Finding the Fourth Proportional to 4,612.68, 6,914.77 and 1,838.69

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Solution

The fourth proportional to 4,612.68, 6,914.77 and 1,838.69 is: 2,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.68 : 6,914.77 = 1,838.69 : x
  2. Step 2: Convert to fraction form
    4,612.68/6,914.77 = 1,838.69/x
  3. Step 3: Cross multiply
    4,612.68x = 6,914.77 × 1,838.69
  4. Step 4: Simplify right side
    4,612.68x = 12,714,118.45
  5. Step 5: Solve for x
    x = 12,714,118.45/4,612.68
  6. Step 6: Final answer
    x = 2,756.34

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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.