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Finding the Fourth Proportional to 71,661.68, 107,505.44 and 29,518.76

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Solution

The fourth proportional to 71,661.68, 107,505.44 and 29,518.76 is: 44,283.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,661.68 : 107,505.44 = 29,518.76 : x
  2. Step 2: Convert to fraction form
    71,661.68/107,505.44 = 29,518.76/x
  3. Step 3: Cross multiply
    71,661.68x = 107,505.44 × 29,518.76
  4. Step 4: Simplify right side
    71,661.68x = 3,173,427,679.96
  5. Step 5: Solve for x
    x = 3,173,427,679.96/71,661.68
  6. Step 6: Final answer
    x = 44,283.47

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1.5x scale

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.