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Finding the Fourth Proportional to 28,843.34, 43,262.96 and 7,784.58

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Solution

The fourth proportional to 28,843.34, 43,262.96 and 7,784.58 is: 11,676.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,843.34 : 43,262.96 = 7,784.58 : x
  2. Step 2: Convert to fraction form
    28,843.34/43,262.96 = 7,784.58/x
  3. Step 3: Cross multiply
    28,843.34x = 43,262.96 × 7,784.58
  4. Step 4: Simplify right side
    28,843.34x = 336,784,173.10
  5. Step 5: Solve for x
    x = 336,784,173.10/28,843.34
  6. Step 6: Final answer
    x = 11,676.32

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1.5x scale

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.