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Finding the Fourth Proportional to 6,656.51, 9,984.81 and 2,957.75

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Solution

The fourth proportional to 6,656.51, 9,984.81 and 2,957.75 is: 4,436.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.51 : 9,984.81 = 2,957.75 : x
  2. Step 2: Convert to fraction form
    6,656.51/9,984.81 = 2,957.75/x
  3. Step 3: Cross multiply
    6,656.51x = 9,984.81 × 2,957.75
  4. Step 4: Simplify right side
    6,656.51x = 29,532,571.78
  5. Step 5: Solve for x
    x = 29,532,571.78/6,656.51
  6. Step 6: Final answer
    x = 4,436.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.