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Finding the Fourth Proportional to 4,211, 6,316.62 and 1,133

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Solution

The fourth proportional to 4,211, 6,316.62 and 1,133 is: 1,699.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211 : 6,316.62 = 1,133 : x
  2. Step 2: Convert to fraction form
    4,211/6,316.62 = 1,133/x
  3. Step 3: Cross multiply
    4,211x = 6,316.62 × 1,133
  4. Step 4: Simplify right side
    4,211x = 7,156,730.46
  5. Step 5: Solve for x
    x = 7,156,730.46/4,211
  6. Step 6: Final answer
    x = 1,699.53

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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.