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Finding the Fourth Proportional to 47,309.87, 70,968.90 and 17,332.25

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Solution

The fourth proportional to 47,309.87, 70,968.90 and 17,332.25 is: 25,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,309.87 : 70,968.90 = 17,332.25 : x
  2. Step 2: Convert to fraction form
    47,309.87/70,968.90 = 17,332.25/x
  3. Step 3: Cross multiply
    47,309.87x = 70,968.90 × 17,332.25
  4. Step 4: Simplify right side
    47,309.87x = 1,230,050,693.31
  5. Step 5: Solve for x
    x = 1,230,050,693.31/47,309.87
  6. Step 6: Final answer
    x = 25,999.88

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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.