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Finding the Fourth Proportional to 6,991.77, 10,484.06 and 2,830.66

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Solution

The fourth proportional to 6,991.77, 10,484.06 and 2,830.66 is: 4,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.77 : 10,484.06 = 2,830.66 : x
  2. Step 2: Convert to fraction form
    6,991.77/10,484.06 = 2,830.66/x
  3. Step 3: Cross multiply
    6,991.77x = 10,484.06 × 2,830.66
  4. Step 4: Simplify right side
    6,991.77x = 29,676,809.28
  5. Step 5: Solve for x
    x = 29,676,809.28/6,991.77
  6. Step 6: Final answer
    x = 4,244.53

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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.