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Finding the Fourth Proportional to 77,487.76, 106,729.41 and 59,548.42

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Solution

The fourth proportional to 77,487.76, 106,729.41 and 59,548.42 is: 82,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,487.76 : 106,729.41 = 59,548.42 : x
  2. Step 2: Convert to fraction form
    77,487.76/106,729.41 = 59,548.42/x
  3. Step 3: Cross multiply
    77,487.76x = 106,729.41 × 59,548.42
  4. Step 4: Simplify right side
    77,487.76x = 6,355,567,733.03
  5. Step 5: Solve for x
    x = 6,355,567,733.03/77,487.76
  6. Step 6: Final answer
    x = 82,020.28

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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.