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Finding the Fourth Proportional to 19,307.40, 26,645.25 and 11,752.53

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Solution

The fourth proportional to 19,307.40, 26,645.25 and 11,752.53 is: 16,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.40 : 26,645.25 = 11,752.53 : x
  2. Step 2: Convert to fraction form
    19,307.40/26,645.25 = 11,752.53/x
  3. Step 3: Cross multiply
    19,307.40x = 26,645.25 × 11,752.53
  4. Step 4: Simplify right side
    19,307.40x = 313,149,099.98
  5. Step 5: Solve for x
    x = 313,149,099.98/19,307.40
  6. Step 6: Final answer
    x = 16,219.12

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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.