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Finding the Fourth Proportional to 8,849.84, 12,215.18 and 5,219.06

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Solution

The fourth proportional to 8,849.84, 12,215.18 and 5,219.06 is: 7,203.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.84 : 12,215.18 = 5,219.06 : x
  2. Step 2: Convert to fraction form
    8,849.84/12,215.18 = 5,219.06/x
  3. Step 3: Cross multiply
    8,849.84x = 12,215.18 × 5,219.06
  4. Step 4: Simplify right side
    8,849.84x = 63,751,670.16
  5. Step 5: Solve for x
    x = 63,751,670.16/8,849.84
  6. Step 6: Final answer
    x = 7,203.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.