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Finding the Fourth Proportional to 67,935, 101,282.36 and 66,208.58

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Solution

The fourth proportional to 67,935, 101,282.36 and 66,208.58 is: 98,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,935 : 101,282.36 = 66,208.58 : x
  2. Step 2: Convert to fraction form
    67,935/101,282.36 = 66,208.58/x
  3. Step 3: Cross multiply
    67,935x = 101,282.36 × 66,208.58
  4. Step 4: Simplify right side
    67,935x = 6,705,761,234.65
  5. Step 5: Solve for x
    x = 6,705,761,234.65/67,935
  6. Step 6: Final answer
    x = 98,708.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.