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Finding the Fourth Proportional to 50,731.81, 70,020.93 and 29,513.86

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Solution

The fourth proportional to 50,731.81, 70,020.93 and 29,513.86 is: 40,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,731.81 : 70,020.93 = 29,513.86 : x
  2. Step 2: Convert to fraction form
    50,731.81/70,020.93 = 29,513.86/x
  3. Step 3: Cross multiply
    50,731.81x = 70,020.93 × 29,513.86
  4. Step 4: Simplify right side
    50,731.81x = 2,066,587,925.09
  5. Step 5: Solve for x
    x = 2,066,587,925.09/50,731.81
  6. Step 6: Final answer
    x = 40,735.54

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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.