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Finding the Fourth Proportional to 65,859.88, 90,886.76 and 35,645.26

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Solution

The fourth proportional to 65,859.88, 90,886.76 and 35,645.26 is: 49,190.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,859.88 : 90,886.76 = 35,645.26 : x
  2. Step 2: Convert to fraction form
    65,859.88/90,886.76 = 35,645.26/x
  3. Step 3: Cross multiply
    65,859.88x = 90,886.76 × 35,645.26
  4. Step 4: Simplify right side
    65,859.88x = 3,239,682,190.76
  5. Step 5: Solve for x
    x = 3,239,682,190.76/65,859.88
  6. Step 6: Final answer
    x = 49,190.53

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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.