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Finding the Fourth Proportional to 3,124.84, 4,688.22 and 1,073

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Solution

The fourth proportional to 3,124.84, 4,688.22 and 1,073 is: 1,609.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.84 : 4,688.22 = 1,073 : x
  2. Step 2: Convert to fraction form
    3,124.84/4,688.22 = 1,073/x
  3. Step 3: Cross multiply
    3,124.84x = 4,688.22 × 1,073
  4. Step 4: Simplify right side
    3,124.84x = 5,030,460.06
  5. Step 5: Solve for x
    x = 5,030,460.06/3,124.84
  6. Step 6: Final answer
    x = 1,609.83

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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.