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Finding the Fourth Proportional to 68,010.87, 93,828.12 and 39,325.26

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Solution

The fourth proportional to 68,010.87, 93,828.12 and 39,325.26 is: 54,253.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,010.87 : 93,828.12 = 39,325.26 : x
  2. Step 2: Convert to fraction form
    68,010.87/93,828.12 = 39,325.26/x
  3. Step 3: Cross multiply
    68,010.87x = 93,828.12 × 39,325.26
  4. Step 4: Simplify right side
    68,010.87x = 3,689,815,214.31
  5. Step 5: Solve for x
    x = 3,689,815,214.31/68,010.87
  6. Step 6: Final answer
    x = 54,253.32

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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.