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Finding the Fourth Proportional to 28,533.22, 42,808.93 and 11,895.01

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Solution

The fourth proportional to 28,533.22, 42,808.93 and 11,895.01 is: 17,846.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533.22 : 42,808.93 = 11,895.01 : x
  2. Step 2: Convert to fraction form
    28,533.22/42,808.93 = 11,895.01/x
  3. Step 3: Cross multiply
    28,533.22x = 42,808.93 × 11,895.01
  4. Step 4: Simplify right side
    28,533.22x = 509,212,513.68
  5. Step 5: Solve for x
    x = 509,212,513.68/28,533.22
  6. Step 6: Final answer
    x = 17,846.31

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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.