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Finding the Fourth Proportional to 4,907.68, 6,772.72 and 2,669.68

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Solution

The fourth proportional to 4,907.68, 6,772.72 and 2,669.68 is: 3,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.68 : 6,772.72 = 2,669.68 : x
  2. Step 2: Convert to fraction form
    4,907.68/6,772.72 = 2,669.68/x
  3. Step 3: Cross multiply
    4,907.68x = 6,772.72 × 2,669.68
  4. Step 4: Simplify right side
    4,907.68x = 18,080,995.13
  5. Step 5: Solve for x
    x = 18,080,995.13/4,907.68
  6. Step 6: Final answer
    x = 3,684.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.