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Finding the Fourth Proportional to 57,755.03, 86,631.32 and 26,590.28

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Solution

The fourth proportional to 57,755.03, 86,631.32 and 26,590.28 is: 39,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,755.03 : 86,631.32 = 26,590.28 : x
  2. Step 2: Convert to fraction form
    57,755.03/86,631.32 = 26,590.28/x
  3. Step 3: Cross multiply
    57,755.03x = 86,631.32 × 26,590.28
  4. Step 4: Simplify right side
    57,755.03x = 2,303,550,688.89
  5. Step 5: Solve for x
    x = 2,303,550,688.89/57,755.03
  6. Step 6: Final answer
    x = 39,884.85

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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.