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Finding the Fourth Proportional to 4,805.05, 7,207.58 and 2,031

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Solution

The fourth proportional to 4,805.05, 7,207.58 and 2,031 is: 3,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.05 : 7,207.58 = 2,031 : x
  2. Step 2: Convert to fraction form
    4,805.05/7,207.58 = 2,031/x
  3. Step 3: Cross multiply
    4,805.05x = 7,207.58 × 2,031
  4. Step 4: Simplify right side
    4,805.05x = 14,638,594.98
  5. Step 5: Solve for x
    x = 14,638,594.98/4,805.05
  6. Step 6: Final answer
    x = 3,046.50

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1.5x scale

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.