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Finding the Fourth Proportional to 18,699.17, 28,041.46 and 7,006.01

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Solution

The fourth proportional to 18,699.17, 28,041.46 and 7,006.01 is: 10,506.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.17 : 28,041.46 = 7,006.01 : x
  2. Step 2: Convert to fraction form
    18,699.17/28,041.46 = 7,006.01/x
  3. Step 3: Cross multiply
    18,699.17x = 28,041.46 × 7,006.01
  4. Step 4: Simplify right side
    18,699.17x = 196,458,749.17
  5. Step 5: Solve for x
    x = 196,458,749.17/18,699.17
  6. Step 6: Final answer
    x = 10,506.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.