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Finding the Fourth Proportional to 35,880.60, 53,796.60 and 19,016.40

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Solution

The fourth proportional to 35,880.60, 53,796.60 and 19,016.40 is: 28,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,880.60 : 53,796.60 = 19,016.40 : x
  2. Step 2: Convert to fraction form
    35,880.60/53,796.60 = 19,016.40/x
  3. Step 3: Cross multiply
    35,880.60x = 53,796.60 × 19,016.40
  4. Step 4: Simplify right side
    35,880.60x = 1,023,017,664.24
  5. Step 5: Solve for x
    x = 1,023,017,664.24/35,880.60
  6. Step 6: Final answer
    x = 28,511.72

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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.