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Finding the Fourth Proportional to 34,675.65, 51,981.79 and 12,483.95

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Solution

The fourth proportional to 34,675.65, 51,981.79 and 12,483.95 is: 18,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,675.65 : 51,981.79 = 12,483.95 : x
  2. Step 2: Convert to fraction form
    34,675.65/51,981.79 = 12,483.95/x
  3. Step 3: Cross multiply
    34,675.65x = 51,981.79 × 12,483.95
  4. Step 4: Simplify right side
    34,675.65x = 648,938,067.27
  5. Step 5: Solve for x
    x = 648,938,067.27/34,675.65
  6. Step 6: Final answer
    x = 18,714.52

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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.