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Finding the Fourth Proportional to 48,645.50, 67,130.79 and 26,289.50

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Solution

The fourth proportional to 48,645.50, 67,130.79 and 26,289.50 is: 36,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,645.50 : 67,130.79 = 26,289.50 : x
  2. Step 2: Convert to fraction form
    48,645.50/67,130.79 = 26,289.50/x
  3. Step 3: Cross multiply
    48,645.50x = 67,130.79 × 26,289.50
  4. Step 4: Simplify right side
    48,645.50x = 1,764,834,903.71
  5. Step 5: Solve for x
    x = 1,764,834,903.71/48,645.50
  6. Step 6: Final answer
    x = 36,279.51

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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.