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Finding the Fourth Proportional to 61,859.79, 85,361.31 and 36,366.99

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Solution

The fourth proportional to 61,859.79, 85,361.31 and 36,366.99 is: 50,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,859.79 : 85,361.31 = 36,366.99 : x
  2. Step 2: Convert to fraction form
    61,859.79/85,361.31 = 36,366.99/x
  3. Step 3: Cross multiply
    61,859.79x = 85,361.31 × 36,366.99
  4. Step 4: Simplify right side
    61,859.79x = 3,104,333,907.16
  5. Step 5: Solve for x
    x = 3,104,333,907.16/61,859.79
  6. Step 6: Final answer
    x = 50,183.39

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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.