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Finding the Fourth Proportional to 63,348.84, 87,349.86 and 47,382.12

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Solution

The fourth proportional to 63,348.84, 87,349.86 and 47,382.12 is: 65,333.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,348.84 : 87,349.86 = 47,382.12 : x
  2. Step 2: Convert to fraction form
    63,348.84/87,349.86 = 47,382.12/x
  3. Step 3: Cross multiply
    63,348.84x = 87,349.86 × 47,382.12
  4. Step 4: Simplify right side
    63,348.84x = 4,138,821,548.50
  5. Step 5: Solve for x
    x = 4,138,821,548.50/63,348.84
  6. Step 6: Final answer
    x = 65,333.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.