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Finding the Fourth Proportional to 68,673.56, 94,775.54 and 38,458.40

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Solution

The fourth proportional to 68,673.56, 94,775.54 and 38,458.40 is: 53,075.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,673.56 : 94,775.54 = 38,458.40 : x
  2. Step 2: Convert to fraction form
    68,673.56/94,775.54 = 38,458.40/x
  3. Step 3: Cross multiply
    68,673.56x = 94,775.54 × 38,458.40
  4. Step 4: Simplify right side
    68,673.56x = 3,644,914,961.37
  5. Step 5: Solve for x
    x = 3,644,914,961.37/68,673.56
  6. Step 6: Final answer
    x = 53,075.96

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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.