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Finding the Fourth Proportional to 8,839.64, 12,197.04 and 5,062.16

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Solution

The fourth proportional to 8,839.64, 12,197.04 and 5,062.16 is: 6,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.64 : 12,197.04 = 5,062.16 : x
  2. Step 2: Convert to fraction form
    8,839.64/12,197.04 = 5,062.16/x
  3. Step 3: Cross multiply
    8,839.64x = 12,197.04 × 5,062.16
  4. Step 4: Simplify right side
    8,839.64x = 61,743,368.01
  5. Step 5: Solve for x
    x = 61,743,368.01/8,839.64
  6. Step 6: Final answer
    x = 6,984.83

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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.