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Finding the Fourth Proportional to 57,606.50, 86,409.75 and 18,167.60

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Solution

The fourth proportional to 57,606.50, 86,409.75 and 18,167.60 is: 27,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,606.50 : 86,409.75 = 18,167.60 : x
  2. Step 2: Convert to fraction form
    57,606.50/86,409.75 = 18,167.60/x
  3. Step 3: Cross multiply
    57,606.50x = 86,409.75 × 18,167.60
  4. Step 4: Simplify right side
    57,606.50x = 1,569,857,990.12
  5. Step 5: Solve for x
    x = 1,569,857,990.12/57,606.50
  6. Step 6: Final answer
    x = 27,251.40

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1.5x scale

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.