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Finding the Fourth Proportional to 68,896.78, 95,077.53 and 39,088.78

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Solution

The fourth proportional to 68,896.78, 95,077.53 and 39,088.78 is: 53,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,896.78 : 95,077.53 = 39,088.78 : x
  2. Step 2: Convert to fraction form
    68,896.78/95,077.53 = 39,088.78/x
  3. Step 3: Cross multiply
    68,896.78x = 95,077.53 × 39,088.78
  4. Step 4: Simplify right side
    68,896.78x = 3,716,464,653.11
  5. Step 5: Solve for x
    x = 3,716,464,653.11/68,896.78
  6. Step 6: Final answer
    x = 53,942.50

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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.