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Finding the Fourth Proportional to 18,127.31, 25,015.31 and 10,060.50

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Solution

The fourth proportional to 18,127.31, 25,015.31 and 10,060.50 is: 13,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.31 : 25,015.31 = 10,060.50 : x
  2. Step 2: Convert to fraction form
    18,127.31/25,015.31 = 10,060.50/x
  3. Step 3: Cross multiply
    18,127.31x = 25,015.31 × 10,060.50
  4. Step 4: Simplify right side
    18,127.31x = 251,666,471.62
  5. Step 5: Solve for x
    x = 251,666,471.62/18,127.31
  6. Step 6: Final answer
    x = 13,883.28

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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.