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Finding the Fourth Proportional to 51,644.70, 71,334.63 and 42,602.83

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Solution

The fourth proportional to 51,644.70, 71,334.63 and 42,602.83 is: 58,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,644.70 : 71,334.63 = 42,602.83 : x
  2. Step 2: Convert to fraction form
    51,644.70/71,334.63 = 42,602.83/x
  3. Step 3: Cross multiply
    51,644.70x = 71,334.63 × 42,602.83
  4. Step 4: Simplify right side
    51,644.70x = 3,039,056,936.67
  5. Step 5: Solve for x
    x = 3,039,056,936.67/51,644.70
  6. Step 6: Final answer
    x = 58,845.48

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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.