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Finding the Fourth Proportional to 29,152.88, 43,743.60 and 12,508

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Solution

The fourth proportional to 29,152.88, 43,743.60 and 12,508 is: 18,768.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,152.88 : 43,743.60 = 12,508 : x
  2. Step 2: Convert to fraction form
    29,152.88/43,743.60 = 12,508/x
  3. Step 3: Cross multiply
    29,152.88x = 43,743.60 × 12,508
  4. Step 4: Simplify right side
    29,152.88x = 547,144,948.80
  5. Step 5: Solve for x
    x = 547,144,948.80/29,152.88
  6. Step 6: Final answer
    x = 18,768.13

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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.