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Finding the Fourth Proportional to 48,879.40, 73,289.40 and 19,263.10

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Solution

The fourth proportional to 48,879.40, 73,289.40 and 19,263.10 is: 28,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,879.40 : 73,289.40 = 19,263.10 : x
  2. Step 2: Convert to fraction form
    48,879.40/73,289.40 = 19,263.10/x
  3. Step 3: Cross multiply
    48,879.40x = 73,289.40 × 19,263.10
  4. Step 4: Simplify right side
    48,879.40x = 1,411,781,041.14
  5. Step 5: Solve for x
    x = 1,411,781,041.14/48,879.40
  6. Step 6: Final answer
    x = 28,882.95

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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.