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Finding the Fourth Proportional to 74,672.24, 103,014.36 and 42,834.80

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Solution

The fourth proportional to 74,672.24, 103,014.36 and 42,834.80 is: 59,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,672.24 : 103,014.36 = 42,834.80 : x
  2. Step 2: Convert to fraction form
    74,672.24/103,014.36 = 42,834.80/x
  3. Step 3: Cross multiply
    74,672.24x = 103,014.36 × 42,834.80
  4. Step 4: Simplify right side
    74,672.24x = 4,412,599,507.73
  5. Step 5: Solve for x
    x = 4,412,599,507.73/74,672.24
  6. Step 6: Final answer
    x = 59,092.90

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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.