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Finding the Fourth Proportional to 4,995.45, 6,893.48 and 2,869.48

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Solution

The fourth proportional to 4,995.45, 6,893.48 and 2,869.48 is: 3,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.45 : 6,893.48 = 2,869.48 : x
  2. Step 2: Convert to fraction form
    4,995.45/6,893.48 = 2,869.48/x
  3. Step 3: Cross multiply
    4,995.45x = 6,893.48 × 2,869.48
  4. Step 4: Simplify right side
    4,995.45x = 19,780,688.64
  5. Step 5: Solve for x
    x = 19,780,688.64/4,995.45
  6. Step 6: Final answer
    x = 3,959.75

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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.