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Finding the Fourth Proportional to 51,651.71, 77,469.06 and 48,289.40

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Solution

The fourth proportional to 51,651.71, 77,469.06 and 48,289.40 is: 72,426.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,651.71 : 77,469.06 = 48,289.40 : x
  2. Step 2: Convert to fraction form
    51,651.71/77,469.06 = 48,289.40/x
  3. Step 3: Cross multiply
    51,651.71x = 77,469.06 × 48,289.40
  4. Step 4: Simplify right side
    51,651.71x = 3,740,934,800.72
  5. Step 5: Solve for x
    x = 3,740,934,800.72/51,651.71
  6. Step 6: Final answer
    x = 72,426.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.