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Finding the Fourth Proportional to 55,470.84, 83,255.68 and 25,905.04

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Solution

The fourth proportional to 55,470.84, 83,255.68 and 25,905.04 is: 38,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,470.84 : 83,255.68 = 25,905.04 : x
  2. Step 2: Convert to fraction form
    55,470.84/83,255.68 = 25,905.04/x
  3. Step 3: Cross multiply
    55,470.84x = 83,255.68 × 25,905.04
  4. Step 4: Simplify right side
    55,470.84x = 2,156,741,720.63
  5. Step 5: Solve for x
    x = 2,156,741,720.63/55,470.84
  6. Step 6: Final answer
    x = 38,880.64

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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.