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Finding the Fourth Proportional to 50,782.46, 70,079.60 and 28,426.46

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Solution

The fourth proportional to 50,782.46, 70,079.60 and 28,426.46 is: 39,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,782.46 : 70,079.60 = 28,426.46 : x
  2. Step 2: Convert to fraction form
    50,782.46/70,079.60 = 28,426.46/x
  3. Step 3: Cross multiply
    50,782.46x = 70,079.60 × 28,426.46
  4. Step 4: Simplify right side
    50,782.46x = 1,992,114,946.22
  5. Step 5: Solve for x
    x = 1,992,114,946.22/50,782.46
  6. Step 6: Final answer
    x = 39,228.41

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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.