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Finding the Fourth Proportional to 49,620.48, 74,430.48 and 18,030.48

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Solution

The fourth proportional to 49,620.48, 74,430.48 and 18,030.48 is: 27,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,620.48 : 74,430.48 = 18,030.48 : x
  2. Step 2: Convert to fraction form
    49,620.48/74,430.48 = 18,030.48/x
  3. Step 3: Cross multiply
    49,620.48x = 74,430.48 × 18,030.48
  4. Step 4: Simplify right side
    49,620.48x = 1,342,017,281.03
  5. Step 5: Solve for x
    x = 1,342,017,281.03/49,620.48
  6. Step 6: Final answer
    x = 27,045.63

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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.