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Finding the Fourth Proportional to 65,840.56, 90,859.87 and 37,166.26

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Solution

The fourth proportional to 65,840.56, 90,859.87 and 37,166.26 is: 51,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,840.56 : 90,859.87 = 37,166.26 : x
  2. Step 2: Convert to fraction form
    65,840.56/90,859.87 = 37,166.26/x
  3. Step 3: Cross multiply
    65,840.56x = 90,859.87 × 37,166.26
  4. Step 4: Simplify right side
    65,840.56x = 3,376,920,911.86
  5. Step 5: Solve for x
    x = 3,376,920,911.86/65,840.56
  6. Step 6: Final answer
    x = 51,289.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.