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Finding the Fourth Proportional to 19,174.84, 26,457.19 and 11,215.51

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Solution

The fourth proportional to 19,174.84, 26,457.19 and 11,215.51 is: 15,475.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,174.84 : 26,457.19 = 11,215.51 : x
  2. Step 2: Convert to fraction form
    19,174.84/26,457.19 = 11,215.51/x
  3. Step 3: Cross multiply
    19,174.84x = 26,457.19 × 11,215.51
  4. Step 4: Simplify right side
    19,174.84x = 296,730,879.02
  5. Step 5: Solve for x
    x = 296,730,879.02/19,174.84
  6. Step 6: Final answer
    x = 15,475.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.