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Finding the Fourth Proportional to 27,360.32, 40,993.32 and 21,368.48

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Solution

The fourth proportional to 27,360.32, 40,993.32 and 21,368.48 is: 32,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,360.32 : 40,993.32 = 21,368.48 : x
  2. Step 2: Convert to fraction form
    27,360.32/40,993.32 = 21,368.48/x
  3. Step 3: Cross multiply
    27,360.32x = 40,993.32 × 21,368.48
  4. Step 4: Simplify right side
    27,360.32x = 875,964,938.55
  5. Step 5: Solve for x
    x = 875,964,938.55/27,360.32
  6. Step 6: Final answer
    x = 32,015.89

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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.