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Finding the Fourth Proportional to 63,684.81, 87,797.22 and 50,807.76

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Solution

The fourth proportional to 63,684.81, 87,797.22 and 50,807.76 is: 70,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,684.81 : 87,797.22 = 50,807.76 : x
  2. Step 2: Convert to fraction form
    63,684.81/87,797.22 = 50,807.76/x
  3. Step 3: Cross multiply
    63,684.81x = 87,797.22 × 50,807.76
  4. Step 4: Simplify right side
    63,684.81x = 4,460,780,082.43
  5. Step 5: Solve for x
    x = 4,460,780,082.43/63,684.81
  6. Step 6: Final answer
    x = 70,044.65

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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.