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Finding the Fourth Proportional to 4,840.07, 6,680.31 and 2,851.31

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Solution

The fourth proportional to 4,840.07, 6,680.31 and 2,851.31 is: 3,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,840.07 : 6,680.31 = 2,851.31 : x
  2. Step 2: Convert to fraction form
    4,840.07/6,680.31 = 2,851.31/x
  3. Step 3: Cross multiply
    4,840.07x = 6,680.31 × 2,851.31
  4. Step 4: Simplify right side
    4,840.07x = 19,047,640.71
  5. Step 5: Solve for x
    x = 19,047,640.71/4,840.07
  6. Step 6: Final answer
    x = 3,935.41

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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.