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Finding the Fourth Proportional to 27,039.89, 40,503.28 and 21,746.32

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Solution

The fourth proportional to 27,039.89, 40,503.28 and 21,746.32 is: 32,574.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,039.89 : 40,503.28 = 21,746.32 : x
  2. Step 2: Convert to fraction form
    27,039.89/40,503.28 = 21,746.32/x
  3. Step 3: Cross multiply
    27,039.89x = 40,503.28 × 21,746.32
  4. Step 4: Simplify right side
    27,039.89x = 880,797,287.93
  5. Step 5: Solve for x
    x = 880,797,287.93/27,039.89
  6. Step 6: Final answer
    x = 32,574.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.