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Finding the Fourth Proportional to 47,231.50, 65,179.53 and 25,721.28

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Solution

The fourth proportional to 47,231.50, 65,179.53 and 25,721.28 is: 35,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,231.50 : 65,179.53 = 25,721.28 : x
  2. Step 2: Convert to fraction form
    47,231.50/65,179.53 = 25,721.28/x
  3. Step 3: Cross multiply
    47,231.50x = 65,179.53 × 25,721.28
  4. Step 4: Simplify right side
    47,231.50x = 1,676,501,198.29
  5. Step 5: Solve for x
    x = 1,676,501,198.29/47,231.50
  6. Step 6: Final answer
    x = 35,495.40

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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.