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Finding the Fourth Proportional to 43,322.67, 64,970.78 and 18,362.25

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Solution

The fourth proportional to 43,322.67, 64,970.78 and 18,362.25 is: 27,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,322.67 : 64,970.78 = 18,362.25 : x
  2. Step 2: Convert to fraction form
    43,322.67/64,970.78 = 18,362.25/x
  3. Step 3: Cross multiply
    43,322.67x = 64,970.78 × 18,362.25
  4. Step 4: Simplify right side
    43,322.67x = 1,193,009,613.24
  5. Step 5: Solve for x
    x = 1,193,009,613.24/43,322.67
  6. Step 6: Final answer
    x = 27,537.77

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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.