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Finding the Fourth Proportional to 12,043.32, 18,059.24 and 7,047.12

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Solution

The fourth proportional to 12,043.32, 18,059.24 and 7,047.12 is: 10,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.32 : 18,059.24 = 7,047.12 : x
  2. Step 2: Convert to fraction form
    12,043.32/18,059.24 = 7,047.12/x
  3. Step 3: Cross multiply
    12,043.32x = 18,059.24 × 7,047.12
  4. Step 4: Simplify right side
    12,043.32x = 127,265,631.39
  5. Step 5: Solve for x
    x = 127,265,631.39/12,043.32
  6. Step 6: Final answer
    x = 10,567.32

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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.