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Finding the Fourth Proportional to 18,122.24, 25,010.03 and 10,953.94

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Solution

The fourth proportional to 18,122.24, 25,010.03 and 10,953.94 is: 15,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.24 : 25,010.03 = 10,953.94 : x
  2. Step 2: Convert to fraction form
    18,122.24/25,010.03 = 10,953.94/x
  3. Step 3: Cross multiply
    18,122.24x = 25,010.03 × 10,953.94
  4. Step 4: Simplify right side
    18,122.24x = 273,958,368.02
  5. Step 5: Solve for x
    x = 273,958,368.02/18,122.24
  6. Step 6: Final answer
    x = 15,117.25

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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.