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Finding the Fourth Proportional to 57,522.75, 79,405.88 and 38,670.81

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Solution

The fourth proportional to 57,522.75, 79,405.88 and 38,670.81 is: 53,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,522.75 : 79,405.88 = 38,670.81 : x
  2. Step 2: Convert to fraction form
    57,522.75/79,405.88 = 38,670.81/x
  3. Step 3: Cross multiply
    57,522.75x = 79,405.88 × 38,670.81
  4. Step 4: Simplify right side
    57,522.75x = 3,070,689,698.36
  5. Step 5: Solve for x
    x = 3,070,689,698.36/57,522.75
  6. Step 6: Final answer
    x = 53,382.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.