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Finding the Fourth Proportional to 28,994.60, 43,489.44 and 9,267.86

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Solution

The fourth proportional to 28,994.60, 43,489.44 and 9,267.86 is: 13,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994.60 : 43,489.44 = 9,267.86 : x
  2. Step 2: Convert to fraction form
    28,994.60/43,489.44 = 9,267.86/x
  3. Step 3: Cross multiply
    28,994.60x = 43,489.44 × 9,267.86
  4. Step 4: Simplify right side
    28,994.60x = 403,053,823.95
  5. Step 5: Solve for x
    x = 403,053,823.95/28,994.60
  6. Step 6: Final answer
    x = 13,901.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.