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Finding the Fourth Proportional to 42,608.86, 63,798.98 and 23,835.43

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Solution

The fourth proportional to 42,608.86, 63,798.98 and 23,835.43 is: 35,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,608.86 : 63,798.98 = 23,835.43 : x
  2. Step 2: Convert to fraction form
    42,608.86/63,798.98 = 23,835.43/x
  3. Step 3: Cross multiply
    42,608.86x = 63,798.98 × 23,835.43
  4. Step 4: Simplify right side
    42,608.86x = 1,520,676,121.86
  5. Step 5: Solve for x
    x = 1,520,676,121.86/42,608.86
  6. Step 6: Final answer
    x = 35,689.20

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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.