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Finding the Fourth Proportional to 68,034.55, 93,880.87 and 39,352.05

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Solution

The fourth proportional to 68,034.55, 93,880.87 and 39,352.05 is: 54,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,034.55 : 93,880.87 = 39,352.05 : x
  2. Step 2: Convert to fraction form
    68,034.55/93,880.87 = 39,352.05/x
  3. Step 3: Cross multiply
    68,034.55x = 93,880.87 × 39,352.05
  4. Step 4: Simplify right side
    68,034.55x = 3,694,404,690.28
  5. Step 5: Solve for x
    x = 3,694,404,690.28/68,034.55
  6. Step 6: Final answer
    x = 54,301.89

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1.5x scale

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.