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Finding the Fourth Proportional to 65,535.79, 90,438.53 and 36,855.44

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Solution

The fourth proportional to 65,535.79, 90,438.53 and 36,855.44 is: 50,860.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,535.79 : 90,438.53 = 36,855.44 : x
  2. Step 2: Convert to fraction form
    65,535.79/90,438.53 = 36,855.44/x
  3. Step 3: Cross multiply
    65,535.79x = 90,438.53 × 36,855.44
  4. Step 4: Simplify right side
    65,535.79x = 3,333,151,518.78
  5. Step 5: Solve for x
    x = 3,333,151,518.78/65,535.79
  6. Step 6: Final answer
    x = 50,860.02

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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.