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Finding the Fourth Proportional to 38,321.87, 57,482.82 and 10,619.87

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Solution

The fourth proportional to 38,321.87, 57,482.82 and 10,619.87 is: 15,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,321.87 : 57,482.82 = 10,619.87 : x
  2. Step 2: Convert to fraction form
    38,321.87/57,482.82 = 10,619.87/x
  3. Step 3: Cross multiply
    38,321.87x = 57,482.82 × 10,619.87
  4. Step 4: Simplify right side
    38,321.87x = 610,459,788.22
  5. Step 5: Solve for x
    x = 610,459,788.22/38,321.87
  6. Step 6: Final answer
    x = 15,929.80

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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.