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Finding the Fourth Proportional to 34,594.36, 51,860.80 and 12,691

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Solution

The fourth proportional to 34,594.36, 51,860.80 and 12,691 is: 19,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,594.36 : 51,860.80 = 12,691 : x
  2. Step 2: Convert to fraction form
    34,594.36/51,860.80 = 12,691/x
  3. Step 3: Cross multiply
    34,594.36x = 51,860.80 × 12,691
  4. Step 4: Simplify right side
    34,594.36x = 658,165,412.80
  5. Step 5: Solve for x
    x = 658,165,412.80/34,594.36
  6. Step 6: Final answer
    x = 19,025.22

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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.