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Finding the Fourth Proportional to 73,116.25, 100,900.44 and 39,582.25

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Solution

The fourth proportional to 73,116.25, 100,900.44 and 39,582.25 is: 54,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,116.25 : 100,900.44 = 39,582.25 : x
  2. Step 2: Convert to fraction form
    73,116.25/100,900.44 = 39,582.25/x
  3. Step 3: Cross multiply
    73,116.25x = 100,900.44 × 39,582.25
  4. Step 4: Simplify right side
    73,116.25x = 3,993,866,441.19
  5. Step 5: Solve for x
    x = 3,993,866,441.19/73,116.25
  6. Step 6: Final answer
    x = 54,623.51

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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.