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Finding the Fourth Proportional to 8,906.60, 12,291.02 and 4,927.68

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Solution

The fourth proportional to 8,906.60, 12,291.02 and 4,927.68 is: 6,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.60 : 12,291.02 = 4,927.68 : x
  2. Step 2: Convert to fraction form
    8,906.60/12,291.02 = 4,927.68/x
  3. Step 3: Cross multiply
    8,906.60x = 12,291.02 × 4,927.68
  4. Step 4: Simplify right side
    8,906.60x = 60,566,213.43
  5. Step 5: Solve for x
    x = 60,566,213.43/8,906.60
  6. Step 6: Final answer
    x = 6,800.15

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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.