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Finding the Fourth Proportional to 67,710.96, 101,564.84 and 28,267.28

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Solution

The fourth proportional to 67,710.96, 101,564.84 and 28,267.28 is: 42,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,710.96 : 101,564.84 = 28,267.28 : x
  2. Step 2: Convert to fraction form
    67,710.96/101,564.84 = 28,267.28/x
  3. Step 3: Cross multiply
    67,710.96x = 101,564.84 × 28,267.28
  4. Step 4: Simplify right side
    67,710.96x = 2,870,961,770.44
  5. Step 5: Solve for x
    x = 2,870,961,770.44/67,710.96
  6. Step 6: Final answer
    x = 42,400.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.