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Finding the Fourth Proportional to 28,696.04, 43,044.00 and 7,636.08

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Solution

The fourth proportional to 28,696.04, 43,044.00 and 7,636.08 is: 11,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.04 : 43,044.00 = 7,636.08 : x
  2. Step 2: Convert to fraction form
    28,696.04/43,044.00 = 7,636.08/x
  3. Step 3: Cross multiply
    28,696.04x = 43,044.00 × 7,636.08
  4. Step 4: Simplify right side
    28,696.04x = 328,687,339.65
  5. Step 5: Solve for x
    x = 328,687,339.65/28,696.04
  6. Step 6: Final answer
    x = 11,454.10

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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.