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Finding the Fourth Proportional to 18,917.01, 26,105.22 and 10,533.51

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Solution

The fourth proportional to 18,917.01, 26,105.22 and 10,533.51 is: 14,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.01 : 26,105.22 = 10,533.51 : x
  2. Step 2: Convert to fraction form
    18,917.01/26,105.22 = 10,533.51/x
  3. Step 3: Cross multiply
    18,917.01x = 26,105.22 × 10,533.51
  4. Step 4: Simplify right side
    18,917.01x = 274,979,595.92
  5. Step 5: Solve for x
    x = 274,979,595.92/18,917.01
  6. Step 6: Final answer
    x = 14,536.10

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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.