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Finding the Fourth Proportional to 19,374.60, 29,040.30 and 11,058.60

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Solution

The fourth proportional to 19,374.60, 29,040.30 and 11,058.60 is: 16,575.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.60 : 29,040.30 = 11,058.60 : x
  2. Step 2: Convert to fraction form
    19,374.60/29,040.30 = 11,058.60/x
  3. Step 3: Cross multiply
    19,374.60x = 29,040.30 × 11,058.60
  4. Step 4: Simplify right side
    19,374.60x = 321,145,061.58
  5. Step 5: Solve for x
    x = 321,145,061.58/19,374.60
  6. Step 6: Final answer
    x = 16,575.57

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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.