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Finding the Fourth Proportional to 29,721.68, 44,601.84 and 12,871.14

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Solution

The fourth proportional to 29,721.68, 44,601.84 and 12,871.14 is: 19,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,721.68 : 44,601.84 = 12,871.14 : x
  2. Step 2: Convert to fraction form
    29,721.68/44,601.84 = 12,871.14/x
  3. Step 3: Cross multiply
    29,721.68x = 44,601.84 × 12,871.14
  4. Step 4: Simplify right side
    29,721.68x = 574,076,526.90
  5. Step 5: Solve for x
    x = 574,076,526.90/29,721.68
  6. Step 6: Final answer
    x = 19,315.08

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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.