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Finding the Fourth Proportional to 28,997.01, 40,012.14 and 17,055.99

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Solution

The fourth proportional to 28,997.01, 40,012.14 and 17,055.99 is: 23,535.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.01 : 40,012.14 = 17,055.99 : x
  2. Step 2: Convert to fraction form
    28,997.01/40,012.14 = 17,055.99/x
  3. Step 3: Cross multiply
    28,997.01x = 40,012.14 × 17,055.99
  4. Step 4: Simplify right side
    28,997.01x = 682,446,659.72
  5. Step 5: Solve for x
    x = 682,446,659.72/28,997.01
  6. Step 6: Final answer
    x = 23,535.07

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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.