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Finding the Fourth Proportional to 19,393.18, 29,100.74 and 8,298.88

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Solution

The fourth proportional to 19,393.18, 29,100.74 and 8,298.88 is: 12,453.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,393.18 : 29,100.74 = 8,298.88 : x
  2. Step 2: Convert to fraction form
    19,393.18/29,100.74 = 8,298.88/x
  3. Step 3: Cross multiply
    19,393.18x = 29,100.74 × 8,298.88
  4. Step 4: Simplify right side
    19,393.18x = 241,503,549.17
  5. Step 5: Solve for x
    x = 241,503,549.17/19,393.18
  6. Step 6: Final answer
    x = 12,453.01

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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.