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Finding the Fourth Proportional to 68,755.65, 94,889.52 and 38,541.03

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Solution

The fourth proportional to 68,755.65, 94,889.52 and 38,541.03 is: 53,190.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,755.65 : 94,889.52 = 38,541.03 : x
  2. Step 2: Convert to fraction form
    68,755.65/94,889.52 = 38,541.03/x
  3. Step 3: Cross multiply
    68,755.65x = 94,889.52 × 38,541.03
  4. Step 4: Simplify right side
    68,755.65x = 3,657,139,837.01
  5. Step 5: Solve for x
    x = 3,657,139,837.01/68,755.65
  6. Step 6: Final answer
    x = 53,190.39

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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.