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Finding the Fourth Proportional to 52,495.98, 78,720.88 and 19,207.41

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Solution

The fourth proportional to 52,495.98, 78,720.88 and 19,207.41 is: 28,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,495.98 : 78,720.88 = 19,207.41 : x
  2. Step 2: Convert to fraction form
    52,495.98/78,720.88 = 19,207.41/x
  3. Step 3: Cross multiply
    52,495.98x = 78,720.88 × 19,207.41
  4. Step 4: Simplify right side
    52,495.98x = 1,512,024,217.72
  5. Step 5: Solve for x
    x = 1,512,024,217.72/52,495.98
  6. Step 6: Final answer
    x = 28,802.67

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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.