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Finding the Fourth Proportional to 34,549.72, 51,792.90 and 12,357.88

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Solution

The fourth proportional to 34,549.72, 51,792.90 and 12,357.88 is: 18,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,549.72 : 51,792.90 = 12,357.88 : x
  2. Step 2: Convert to fraction form
    34,549.72/51,792.90 = 12,357.88/x
  3. Step 3: Cross multiply
    34,549.72x = 51,792.90 × 12,357.88
  4. Step 4: Simplify right side
    34,549.72x = 640,050,443.05
  5. Step 5: Solve for x
    x = 640,050,443.05/34,549.72
  6. Step 6: Final answer
    x = 18,525.49

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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.