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Finding the Fourth Proportional to 57,410.60, 86,091.60 and 17,957.12

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Solution

The fourth proportional to 57,410.60, 86,091.60 and 17,957.12 is: 26,928.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,410.60 : 86,091.60 = 17,957.12 : x
  2. Step 2: Convert to fraction form
    57,410.60/86,091.60 = 17,957.12/x
  3. Step 3: Cross multiply
    57,410.60x = 86,091.60 × 17,957.12
  4. Step 4: Simplify right side
    57,410.60x = 1,545,957,192.19
  5. Step 5: Solve for x
    x = 1,545,957,192.19/57,410.60
  6. Step 6: Final answer
    x = 26,928.08

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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.