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Finding the Fourth Proportional to 6,860.31, 9,467.93 and 4,947.72

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Solution

The fourth proportional to 6,860.31, 9,467.93 and 4,947.72 is: 6,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.31 : 9,467.93 = 4,947.72 : x
  2. Step 2: Convert to fraction form
    6,860.31/9,467.93 = 4,947.72/x
  3. Step 3: Cross multiply
    6,860.31x = 9,467.93 × 4,947.72
  4. Step 4: Simplify right side
    6,860.31x = 46,844,678.99
  5. Step 5: Solve for x
    x = 46,844,678.99/6,860.31
  6. Step 6: Final answer
    x = 6,828.36

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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.