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Finding the Fourth Proportional to 43,466.88, 65,229.48 and 15,387

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Solution

The fourth proportional to 43,466.88, 65,229.48 and 15,387 is: 23,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,466.88 : 65,229.48 = 15,387 : x
  2. Step 2: Convert to fraction form
    43,466.88/65,229.48 = 15,387/x
  3. Step 3: Cross multiply
    43,466.88x = 65,229.48 × 15,387
  4. Step 4: Simplify right side
    43,466.88x = 1,003,686,008.76
  5. Step 5: Solve for x
    x = 1,003,686,008.76/43,466.88
  6. Step 6: Final answer
    x = 23,090.82

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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.