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Finding the Fourth Proportional to 57,097.08, 85,520.57 and 28,968.82

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Solution

The fourth proportional to 57,097.08, 85,520.57 and 28,968.82 is: 43,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,097.08 : 85,520.57 = 28,968.82 : x
  2. Step 2: Convert to fraction form
    57,097.08/85,520.57 = 28,968.82/x
  3. Step 3: Cross multiply
    57,097.08x = 85,520.57 × 28,968.82
  4. Step 4: Simplify right side
    57,097.08x = 2,477,429,998.63
  5. Step 5: Solve for x
    x = 2,477,429,998.63/57,097.08
  6. Step 6: Final answer
    x = 43,389.78

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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.