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Finding the Fourth Proportional to 52,672.65, 79,040.16 and 19,416.06

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Solution

The fourth proportional to 52,672.65, 79,040.16 and 19,416.06 is: 29,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,672.65 : 79,040.16 = 19,416.06 : x
  2. Step 2: Convert to fraction form
    52,672.65/79,040.16 = 19,416.06/x
  3. Step 3: Cross multiply
    52,672.65x = 79,040.16 × 19,416.06
  4. Step 4: Simplify right side
    52,672.65x = 1,534,648,488.97
  5. Step 5: Solve for x
    x = 1,534,648,488.97/52,672.65
  6. Step 6: Final answer
    x = 29,135.59

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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.