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Finding the Fourth Proportional to 47,060.68, 70,604.84 and 18,966.31

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Solution

The fourth proportional to 47,060.68, 70,604.84 and 18,966.31 is: 28,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,060.68 : 70,604.84 = 18,966.31 : x
  2. Step 2: Convert to fraction form
    47,060.68/70,604.84 = 18,966.31/x
  3. Step 3: Cross multiply
    47,060.68x = 70,604.84 × 18,966.31
  4. Step 4: Simplify right side
    47,060.68x = 1,339,113,299.08
  5. Step 5: Solve for x
    x = 1,339,113,299.08/47,060.68
  6. Step 6: Final answer
    x = 28,455.04

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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.