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Finding the Fourth Proportional to 56,382.40, 84,354.90 and 36,699.40

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Solution

The fourth proportional to 56,382.40, 84,354.90 and 36,699.40 is: 54,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,382.40 : 84,354.90 = 36,699.40 : x
  2. Step 2: Convert to fraction form
    56,382.40/84,354.90 = 36,699.40/x
  3. Step 3: Cross multiply
    56,382.40x = 84,354.90 × 36,699.40
  4. Step 4: Simplify right side
    56,382.40x = 3,095,774,217.06
  5. Step 5: Solve for x
    x = 3,095,774,217.06/56,382.40
  6. Step 6: Final answer
    x = 54,906.75

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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.