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Finding the Fourth Proportional to 57,675.60, 86,529.60 and 28,094.40

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Solution

The fourth proportional to 57,675.60, 86,529.60 and 28,094.40 is: 42,149.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,675.60 : 86,529.60 = 28,094.40 : x
  2. Step 2: Convert to fraction form
    57,675.60/86,529.60 = 28,094.40/x
  3. Step 3: Cross multiply
    57,675.60x = 86,529.60 × 28,094.40
  4. Step 4: Simplify right side
    57,675.60x = 2,430,997,194.24
  5. Step 5: Solve for x
    x = 2,430,997,194.24/57,675.60
  6. Step 6: Final answer
    x = 42,149.49

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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.