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Finding the Fourth Proportional to 52,604.84, 78,860.36 and 19,317.26

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Solution

The fourth proportional to 52,604.84, 78,860.36 and 19,317.26 is: 28,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,604.84 : 78,860.36 = 19,317.26 : x
  2. Step 2: Convert to fraction form
    52,604.84/78,860.36 = 19,317.26/x
  3. Step 3: Cross multiply
    52,604.84x = 78,860.36 × 19,317.26
  4. Step 4: Simplify right side
    52,604.84x = 1,523,366,077.81
  5. Step 5: Solve for x
    x = 1,523,366,077.81/52,604.84
  6. Step 6: Final answer
    x = 28,958.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.