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Finding the Fourth Proportional to 7,210.82, 10,819.16 and 3,699.06

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Solution

The fourth proportional to 7,210.82, 10,819.16 and 3,699.06 is: 5,550.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.82 : 10,819.16 = 3,699.06 : x
  2. Step 2: Convert to fraction form
    7,210.82/10,819.16 = 3,699.06/x
  3. Step 3: Cross multiply
    7,210.82x = 10,819.16 × 3,699.06
  4. Step 4: Simplify right side
    7,210.82x = 40,020,703.49
  5. Step 5: Solve for x
    x = 40,020,703.49/7,210.82
  6. Step 6: Final answer
    x = 5,550.09

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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.