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Finding the Fourth Proportional to 65,497.53, 90,381.74 and 37,197.75

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Solution

The fourth proportional to 65,497.53, 90,381.74 and 37,197.75 is: 51,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,497.53 : 90,381.74 = 37,197.75 : x
  2. Step 2: Convert to fraction form
    65,497.53/90,381.74 = 37,197.75/x
  3. Step 3: Cross multiply
    65,497.53x = 90,381.74 × 37,197.75
  4. Step 4: Simplify right side
    65,497.53x = 3,361,997,183.10
  5. Step 5: Solve for x
    x = 3,361,997,183.10/65,497.53
  6. Step 6: Final answer
    x = 51,330.14

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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.