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Finding the Fourth Proportional to 8,984.46, 12,397.04 and 5,005.46

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Solution

The fourth proportional to 8,984.46, 12,397.04 and 5,005.46 is: 6,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.46 : 12,397.04 = 5,005.46 : x
  2. Step 2: Convert to fraction form
    8,984.46/12,397.04 = 5,005.46/x
  3. Step 3: Cross multiply
    8,984.46x = 12,397.04 × 5,005.46
  4. Step 4: Simplify right side
    8,984.46x = 62,052,887.84
  5. Step 5: Solve for x
    x = 62,052,887.84/8,984.46
  6. Step 6: Final answer
    x = 6,906.69

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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.