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Finding the Fourth Proportional to 6,787.05, 9,357.42 and 5,015.58

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Solution

The fourth proportional to 6,787.05, 9,357.42 and 5,015.58 is: 6,915.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.05 : 9,357.42 = 5,015.58 : x
  2. Step 2: Convert to fraction form
    6,787.05/9,357.42 = 5,015.58/x
  3. Step 3: Cross multiply
    6,787.05x = 9,357.42 × 5,015.58
  4. Step 4: Simplify right side
    6,787.05x = 46,932,888.60
  5. Step 5: Solve for x
    x = 46,932,888.60/6,787.05
  6. Step 6: Final answer
    x = 6,915.06

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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.