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Finding the Fourth Proportional to 57,878.37, 86,819.37 and 19,927.23

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Solution

The fourth proportional to 57,878.37, 86,819.37 and 19,927.23 is: 29,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878.37 : 86,819.37 = 19,927.23 : x
  2. Step 2: Convert to fraction form
    57,878.37/86,819.37 = 19,927.23/x
  3. Step 3: Cross multiply
    57,878.37x = 86,819.37 × 19,927.23
  4. Step 4: Simplify right side
    57,878.37x = 1,730,069,554.45
  5. Step 5: Solve for x
    x = 1,730,069,554.45/57,878.37
  6. Step 6: Final answer
    x = 29,891.47

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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.