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Finding the Fourth Proportional to 47,064.08, 70,604.76 and 18,984.08

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Solution

The fourth proportional to 47,064.08, 70,604.76 and 18,984.08 is: 28,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,064.08 : 70,604.76 = 18,984.08 : x
  2. Step 2: Convert to fraction form
    47,064.08/70,604.76 = 18,984.08/x
  3. Step 3: Cross multiply
    47,064.08x = 70,604.76 × 18,984.08
  4. Step 4: Simplify right side
    47,064.08x = 1,340,366,412.22
  5. Step 5: Solve for x
    x = 1,340,366,412.22/47,064.08
  6. Step 6: Final answer
    x = 28,479.61

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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.