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Finding the Fourth Proportional to 48,646.62, 72,940.68 and 19,029.18

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Solution

The fourth proportional to 48,646.62, 72,940.68 and 19,029.18 is: 28,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,646.62 : 72,940.68 = 19,029.18 : x
  2. Step 2: Convert to fraction form
    48,646.62/72,940.68 = 19,029.18/x
  3. Step 3: Cross multiply
    48,646.62x = 72,940.68 × 19,029.18
  4. Step 4: Simplify right side
    48,646.62x = 1,388,001,329.04
  5. Step 5: Solve for x
    x = 1,388,001,329.04/48,646.62
  6. Step 6: Final answer
    x = 28,532.33

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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.