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Finding the Fourth Proportional to 50,673.75, 69,931.94 and 28,317.75

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Solution

The fourth proportional to 50,673.75, 69,931.94 and 28,317.75 is: 39,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,673.75 : 69,931.94 = 28,317.75 : x
  2. Step 2: Convert to fraction form
    50,673.75/69,931.94 = 28,317.75/x
  3. Step 3: Cross multiply
    50,673.75x = 69,931.94 × 28,317.75
  4. Step 4: Simplify right side
    50,673.75x = 1,980,315,052.35
  5. Step 5: Solve for x
    x = 1,980,315,052.35/50,673.75
  6. Step 6: Final answer
    x = 39,079.70

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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.