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Finding the Fourth Proportional to 50,506.68, 69,707.45 and 30,383.90

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Solution

The fourth proportional to 50,506.68, 69,707.45 and 30,383.90 is: 41,934.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,506.68 : 69,707.45 = 30,383.90 : x
  2. Step 2: Convert to fraction form
    50,506.68/69,707.45 = 30,383.90/x
  3. Step 3: Cross multiply
    50,506.68x = 69,707.45 × 30,383.90
  4. Step 4: Simplify right side
    50,506.68x = 2,117,984,400.08
  5. Step 5: Solve for x
    x = 2,117,984,400.08/50,506.68
  6. Step 6: Final answer
    x = 41,934.74

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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.