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Finding the Fourth Proportional to 47,798.90, 71,707.93 and 26,768.86

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Solution

The fourth proportional to 47,798.90, 71,707.93 and 26,768.86 is: 40,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,798.90 : 71,707.93 = 26,768.86 : x
  2. Step 2: Convert to fraction form
    47,798.90/71,707.93 = 26,768.86/x
  3. Step 3: Cross multiply
    47,798.90x = 71,707.93 × 26,768.86
  4. Step 4: Simplify right side
    47,798.90x = 1,919,539,539.06
  5. Step 5: Solve for x
    x = 1,919,539,539.06/47,798.90
  6. Step 6: Final answer
    x = 40,158.66

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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.