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Finding the Fourth Proportional to 77,791.46, 107,360.29 and 47,596.88

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Solution

The fourth proportional to 77,791.46, 107,360.29 and 47,596.88 is: 65,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,791.46 : 107,360.29 = 47,596.88 : x
  2. Step 2: Convert to fraction form
    77,791.46/107,360.29 = 47,596.88/x
  3. Step 3: Cross multiply
    77,791.46x = 107,360.29 × 47,596.88
  4. Step 4: Simplify right side
    77,791.46x = 5,110,014,900.06
  5. Step 5: Solve for x
    x = 5,110,014,900.06/77,791.46
  6. Step 6: Final answer
    x = 65,688.64

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1.5x scale

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.