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Finding the Fourth Proportional to 68,875.06, 95,020.14 and 42,015.46

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Solution

The fourth proportional to 68,875.06, 95,020.14 and 42,015.46 is: 57,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,875.06 : 95,020.14 = 42,015.46 : x
  2. Step 2: Convert to fraction form
    68,875.06/95,020.14 = 42,015.46/x
  3. Step 3: Cross multiply
    68,875.06x = 95,020.14 × 42,015.46
  4. Step 4: Simplify right side
    68,875.06x = 3,992,314,891.36
  5. Step 5: Solve for x
    x = 3,992,314,891.36/68,875.06
  6. Step 6: Final answer
    x = 57,964.59

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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.