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Finding the Fourth Proportional to 47,978.68, 66,210.45 and 26,757.97

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Solution

The fourth proportional to 47,978.68, 66,210.45 and 26,757.97 is: 36,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,978.68 : 66,210.45 = 26,757.97 : x
  2. Step 2: Convert to fraction form
    47,978.68/66,210.45 = 26,757.97/x
  3. Step 3: Cross multiply
    47,978.68x = 66,210.45 × 26,757.97
  4. Step 4: Simplify right side
    47,978.68x = 1,771,657,234.79
  5. Step 5: Solve for x
    x = 1,771,657,234.79/47,978.68
  6. Step 6: Final answer
    x = 36,925.93

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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.