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Finding the Fourth Proportional to 5,017.84, 6,925.20 and 2,921.96

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Solution

The fourth proportional to 5,017.84, 6,925.20 and 2,921.96 is: 4,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,017.84 : 6,925.20 = 2,921.96 : x
  2. Step 2: Convert to fraction form
    5,017.84/6,925.20 = 2,921.96/x
  3. Step 3: Cross multiply
    5,017.84x = 6,925.20 × 2,921.96
  4. Step 4: Simplify right side
    5,017.84x = 20,235,157.39
  5. Step 5: Solve for x
    x = 20,235,157.39/5,017.84
  6. Step 6: Final answer
    x = 4,032.64

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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.