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Finding the Fourth Proportional to 65,604.72, 90,544.32 and 41,741.76

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Solution

The fourth proportional to 65,604.72, 90,544.32 and 41,741.76 is: 57,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,604.72 : 90,544.32 = 41,741.76 : x
  2. Step 2: Convert to fraction form
    65,604.72/90,544.32 = 41,741.76/x
  3. Step 3: Cross multiply
    65,604.72x = 90,544.32 × 41,741.76
  4. Step 4: Simplify right side
    65,604.72x = 3,779,479,274.80
  5. Step 5: Solve for x
    x = 3,779,479,274.80/65,604.72
  6. Step 6: Final answer
    x = 57,609.87

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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.