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Finding the Fourth Proportional to 48,777.62, 67,299.46 and 30,630.30

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Solution

The fourth proportional to 48,777.62, 67,299.46 and 30,630.30 is: 42,261.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,777.62 : 67,299.46 = 30,630.30 : x
  2. Step 2: Convert to fraction form
    48,777.62/67,299.46 = 30,630.30/x
  3. Step 3: Cross multiply
    48,777.62x = 67,299.46 × 30,630.30
  4. Step 4: Simplify right side
    48,777.62x = 2,061,402,699.25
  5. Step 5: Solve for x
    x = 2,061,402,699.25/48,777.62
  6. Step 6: Final answer
    x = 42,261.24

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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.