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Finding the Fourth Proportional to 50,645.87, 75,968.86 and 13,205.91

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Solution

The fourth proportional to 50,645.87, 75,968.86 and 13,205.91 is: 19,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,645.87 : 75,968.86 = 13,205.91 : x
  2. Step 2: Convert to fraction form
    50,645.87/75,968.86 = 13,205.91/x
  3. Step 3: Cross multiply
    50,645.87x = 75,968.86 × 13,205.91
  4. Step 4: Simplify right side
    50,645.87x = 1,003,237,482.09
  5. Step 5: Solve for x
    x = 1,003,237,482.09/50,645.87
  6. Step 6: Final answer
    x = 19,808.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.