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Finding the Fourth Proportional to 57,722.40, 86,653.80 and 36,662.40

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Solution

The fourth proportional to 57,722.40, 86,653.80 and 36,662.40 is: 55,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.40 : 86,653.80 = 36,662.40 : x
  2. Step 2: Convert to fraction form
    57,722.40/86,653.80 = 36,662.40/x
  3. Step 3: Cross multiply
    57,722.40x = 86,653.80 × 36,662.40
  4. Step 4: Simplify right side
    57,722.40x = 3,176,936,277.12
  5. Step 5: Solve for x
    x = 3,176,936,277.12/57,722.40
  6. Step 6: Final answer
    x = 55,038.19

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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.