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Finding the Fourth Proportional to 52,503.76, 78,755.67 and 13,060.87

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Solution

The fourth proportional to 52,503.76, 78,755.67 and 13,060.87 is: 19,591.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,503.76 : 78,755.67 = 13,060.87 : x
  2. Step 2: Convert to fraction form
    52,503.76/78,755.67 = 13,060.87/x
  3. Step 3: Cross multiply
    52,503.76x = 78,755.67 × 13,060.87
  4. Step 4: Simplify right side
    52,503.76x = 1,028,617,567.63
  5. Step 5: Solve for x
    x = 1,028,617,567.63/52,503.76
  6. Step 6: Final answer
    x = 19,591.31

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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.