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Finding the Fourth Proportional to 83,477.25, 125,215.88 and 28,073.25

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Solution

The fourth proportional to 83,477.25, 125,215.88 and 28,073.25 is: 42,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,477.25 : 125,215.88 = 28,073.25 : x
  2. Step 2: Convert to fraction form
    83,477.25/125,215.88 = 28,073.25/x
  3. Step 3: Cross multiply
    83,477.25x = 125,215.88 × 28,073.25
  4. Step 4: Simplify right side
    83,477.25x = 3,515,216,562.84
  5. Step 5: Solve for x
    x = 3,515,216,562.84/83,477.25
  6. Step 6: Final answer
    x = 42,109.88

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1.5x scale

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.