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Finding the Fourth Proportional to 68,775.44, 94,907.40 and 38,967.44

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Solution

The fourth proportional to 68,775.44, 94,907.40 and 38,967.44 is: 53,773.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,775.44 : 94,907.40 = 38,967.44 : x
  2. Step 2: Convert to fraction form
    68,775.44/94,907.40 = 38,967.44/x
  3. Step 3: Cross multiply
    68,775.44x = 94,907.40 × 38,967.44
  4. Step 4: Simplify right side
    68,775.44x = 3,698,298,415.06
  5. Step 5: Solve for x
    x = 3,698,298,415.06/68,775.44
  6. Step 6: Final answer
    x = 53,773.53

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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.