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Finding the Fourth Proportional to 50,541.40, 69,745.62 and 28,185.40

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Solution

The fourth proportional to 50,541.40, 69,745.62 and 28,185.40 is: 38,895.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,541.40 : 69,745.62 = 28,185.40 : x
  2. Step 2: Convert to fraction form
    50,541.40/69,745.62 = 28,185.40/x
  3. Step 3: Cross multiply
    50,541.40x = 69,745.62 × 28,185.40
  4. Step 4: Simplify right side
    50,541.40x = 1,965,808,197.95
  5. Step 5: Solve for x
    x = 1,965,808,197.95/50,541.40
  6. Step 6: Final answer
    x = 38,895.01

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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.