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Finding the Fourth Proportional to 46,490.28, 69,765.12 and 16,905.30

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Solution

The fourth proportional to 46,490.28, 69,765.12 and 16,905.30 is: 25,368.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,490.28 : 69,765.12 = 16,905.30 : x
  2. Step 2: Convert to fraction form
    46,490.28/69,765.12 = 16,905.30/x
  3. Step 3: Cross multiply
    46,490.28x = 69,765.12 × 16,905.30
  4. Step 4: Simplify right side
    46,490.28x = 1,179,400,283.14
  5. Step 5: Solve for x
    x = 1,179,400,283.14/46,490.28
  6. Step 6: Final answer
    x = 25,368.75

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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.