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Finding the Fourth Proportional to 47,359.86, 71,050.90 and 14,080.20

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Solution

The fourth proportional to 47,359.86, 71,050.90 and 14,080.20 is: 21,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,359.86 : 71,050.90 = 14,080.20 : x
  2. Step 2: Convert to fraction form
    47,359.86/71,050.90 = 14,080.20/x
  3. Step 3: Cross multiply
    47,359.86x = 71,050.90 × 14,080.20
  4. Step 4: Simplify right side
    47,359.86x = 1,000,410,882.18
  5. Step 5: Solve for x
    x = 1,000,410,882.18/47,359.86
  6. Step 6: Final answer
    x = 21,123.60

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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.