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Finding the Fourth Proportional to 65,820.93, 90,832.89 and 37,146.70

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Solution

The fourth proportional to 65,820.93, 90,832.89 and 37,146.70 is: 51,262.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,820.93 : 90,832.89 = 37,146.70 : x
  2. Step 2: Convert to fraction form
    65,820.93/90,832.89 = 37,146.70/x
  3. Step 3: Cross multiply
    65,820.93x = 90,832.89 × 37,146.70
  4. Step 4: Simplify right side
    65,820.93x = 3,374,142,367.80
  5. Step 5: Solve for x
    x = 3,374,142,367.80/65,820.93
  6. Step 6: Final answer
    x = 51,262.46

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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.