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Finding the Fourth Proportional to 50,918, 70,267.08 and 28,562

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Solution

The fourth proportional to 50,918, 70,267.08 and 28,562 is: 39,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,918 : 70,267.08 = 28,562 : x
  2. Step 2: Convert to fraction form
    50,918/70,267.08 = 28,562/x
  3. Step 3: Cross multiply
    50,918x = 70,267.08 × 28,562
  4. Step 4: Simplify right side
    50,918x = 2,006,968,338.96
  5. Step 5: Solve for x
    x = 2,006,968,338.96/50,918
  6. Step 6: Final answer
    x = 39,415.69

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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.