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Finding the Fourth Proportional to 64,876.68, 97,314.84 and 15,628.68

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Solution

The fourth proportional to 64,876.68, 97,314.84 and 15,628.68 is: 23,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,876.68 : 97,314.84 = 15,628.68 : x
  2. Step 2: Convert to fraction form
    64,876.68/97,314.84 = 15,628.68/x
  3. Step 3: Cross multiply
    64,876.68x = 97,314.84 × 15,628.68
  4. Step 4: Simplify right side
    64,876.68x = 1,520,902,493.61
  5. Step 5: Solve for x
    x = 1,520,902,493.61/64,876.68
  6. Step 6: Final answer
    x = 23,442.98

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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.