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Finding the Fourth Proportional to 21,800.49, 32,703.80 and 7,004.44

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Solution

The fourth proportional to 21,800.49, 32,703.80 and 7,004.44 is: 10,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.49 : 32,703.80 = 7,004.44 : x
  2. Step 2: Convert to fraction form
    21,800.49/32,703.80 = 7,004.44/x
  3. Step 3: Cross multiply
    21,800.49x = 32,703.80 × 7,004.44
  4. Step 4: Simplify right side
    21,800.49x = 229,071,804.87
  5. Step 5: Solve for x
    x = 229,071,804.87/21,800.49
  6. Step 6: Final answer
    x = 10,507.64

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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.