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Finding the Fourth Proportional to 18,993,251.25, 26,210,709.77 and 10,291,417.11

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Solution

The fourth proportional to 18,993,251.25, 26,210,709.77 and 10,291,417.11 is: 14,202,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993,251.25 : 26,210,709.77 = 10,291,417.11 : x
  2. Step 2: Convert to fraction form
    18,993,251.25/26,210,709.77 = 10,291,417.11/x
  3. Step 3: Cross multiply
    18,993,251.25x = 26,210,709.77 × 10,291,417.11
  4. Step 4: Simplify right side
    18,993,251.25x = 269,745,346,940,765.06
  5. Step 5: Solve for x
    x = 269,745,346,940,765.06/18,993,251.25
  6. Step 6: Final answer
    x = 14,202,168.10

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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.