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Finding the Fourth Proportional to 28,696.56, 43,041.60 and 9,973.44

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Solution

The fourth proportional to 28,696.56, 43,041.60 and 9,973.44 is: 14,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.56 : 43,041.60 = 9,973.44 : x
  2. Step 2: Convert to fraction form
    28,696.56/43,041.60 = 9,973.44/x
  3. Step 3: Cross multiply
    28,696.56x = 43,041.60 × 9,973.44
  4. Step 4: Simplify right side
    28,696.56x = 429,272,815.10
  5. Step 5: Solve for x
    x = 429,272,815.10/28,696.56
  6. Step 6: Final answer
    x = 14,959.03

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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.