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Finding the Fourth Proportional to 8,847.06, 12,207.90 and 5,070.06

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Solution

The fourth proportional to 8,847.06, 12,207.90 and 5,070.06 is: 6,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,847.06 : 12,207.90 = 5,070.06 : x
  2. Step 2: Convert to fraction form
    8,847.06/12,207.90 = 5,070.06/x
  3. Step 3: Cross multiply
    8,847.06x = 12,207.90 × 5,070.06
  4. Step 4: Simplify right side
    8,847.06x = 61,894,785.47
  5. Step 5: Solve for x
    x = 61,894,785.47/8,847.06
  6. Step 6: Final answer
    x = 6,996.09

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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.