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Finding the Fourth Proportional to 73,045.44, 100,802.88 and 39,511.44

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Solution

The fourth proportional to 73,045.44, 100,802.88 and 39,511.44 is: 54,525.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,045.44 : 100,802.88 = 39,511.44 : x
  2. Step 2: Convert to fraction form
    73,045.44/100,802.88 = 39,511.44/x
  3. Step 3: Cross multiply
    73,045.44x = 100,802.88 × 39,511.44
  4. Step 4: Simplify right side
    73,045.44x = 3,982,866,944.95
  5. Step 5: Solve for x
    x = 3,982,866,944.95/73,045.44
  6. Step 6: Final answer
    x = 54,525.88

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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.