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Finding the Fourth Proportional to 48,643.53, 72,940.70 and 14,899.49

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Solution

The fourth proportional to 48,643.53, 72,940.70 and 14,899.49 is: 22,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,643.53 : 72,940.70 = 14,899.49 : x
  2. Step 2: Convert to fraction form
    48,643.53/72,940.70 = 14,899.49/x
  3. Step 3: Cross multiply
    48,643.53x = 72,940.70 × 14,899.49
  4. Step 4: Simplify right side
    48,643.53x = 1,086,778,791.04
  5. Step 5: Solve for x
    x = 1,086,778,791.04/48,643.53
  6. Step 6: Final answer
    x = 22,341.69

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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.