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Finding the Fourth Proportional to 19,374.55, 29,062.54 and 5,335.67

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Solution

The fourth proportional to 19,374.55, 29,062.54 and 5,335.67 is: 8,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.55 : 29,062.54 = 5,335.67 : x
  2. Step 2: Convert to fraction form
    19,374.55/29,062.54 = 5,335.67/x
  3. Step 3: Cross multiply
    19,374.55x = 29,062.54 × 5,335.67
  4. Step 4: Simplify right side
    19,374.55x = 155,067,964.15
  5. Step 5: Solve for x
    x = 155,067,964.15/19,374.55
  6. Step 6: Final answer
    x = 8,003.69

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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.