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Finding the Fourth Proportional to 6,990.54, 10,533.62 and 5,784.54

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Solution

The fourth proportional to 6,990.54, 10,533.62 and 5,784.54 is: 8,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.54 : 10,533.62 = 5,784.54 : x
  2. Step 2: Convert to fraction form
    6,990.54/10,533.62 = 5,784.54/x
  3. Step 3: Cross multiply
    6,990.54x = 10,533.62 × 5,784.54
  4. Step 4: Simplify right side
    6,990.54x = 60,932,117.31
  5. Step 5: Solve for x
    x = 60,932,117.31/6,990.54
  6. Step 6: Final answer
    x = 8,716.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.