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Finding the Fourth Proportional to 4,793.51, 7,191.16 and 1,871.64

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Solution

The fourth proportional to 4,793.51, 7,191.16 and 1,871.64 is: 2,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,793.51 : 7,191.16 = 1,871.64 : x
  2. Step 2: Convert to fraction form
    4,793.51/7,191.16 = 1,871.64/x
  3. Step 3: Cross multiply
    4,793.51x = 7,191.16 × 1,871.64
  4. Step 4: Simplify right side
    4,793.51x = 13,459,258.02
  5. Step 5: Solve for x
    x = 13,459,258.02/4,793.51
  6. Step 6: Final answer
    x = 2,807.81

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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.