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Finding the Fourth Proportional to 68,452.50, 94,464.54 and 38,644.50

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Solution

The fourth proportional to 68,452.50, 94,464.54 and 38,644.50 is: 53,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,452.50 : 94,464.54 = 38,644.50 : x
  2. Step 2: Convert to fraction form
    68,452.50/94,464.54 = 38,644.50/x
  3. Step 3: Cross multiply
    68,452.50x = 94,464.54 × 38,644.50
  4. Step 4: Simplify right side
    68,452.50x = 3,650,534,916.03
  5. Step 5: Solve for x
    x = 3,650,534,916.03/68,452.50
  6. Step 6: Final answer
    x = 53,329.46

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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.