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Finding the Fourth Proportional to 8,839.84, 12,199.26 and 4,861.12

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Solution

The fourth proportional to 8,839.84, 12,199.26 and 4,861.12 is: 6,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.84 : 12,199.26 = 4,861.12 : x
  2. Step 2: Convert to fraction form
    8,839.84/12,199.26 = 4,861.12/x
  3. Step 3: Cross multiply
    8,839.84x = 12,199.26 × 4,861.12
  4. Step 4: Simplify right side
    8,839.84x = 59,302,066.77
  5. Step 5: Solve for x
    x = 59,302,066.77/8,839.84
  6. Step 6: Final answer
    x = 6,708.50

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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.