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Finding the Fourth Proportional to 60,431.66, 83,405.68 and 50,344.12

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Solution

The fourth proportional to 60,431.66, 83,405.68 and 50,344.12 is: 69,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,431.66 : 83,405.68 = 50,344.12 : x
  2. Step 2: Convert to fraction form
    60,431.66/83,405.68 = 50,344.12/x
  3. Step 3: Cross multiply
    60,431.66x = 83,405.68 × 50,344.12
  4. Step 4: Simplify right side
    60,431.66x = 4,198,985,562.60
  5. Step 5: Solve for x
    x = 4,198,985,562.60/60,431.66
  6. Step 6: Final answer
    x = 69,483.21

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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.