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Finding the Fourth Proportional to 60,387.30, 90,942.60 and 55,000.44

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Solution

The fourth proportional to 60,387.30, 90,942.60 and 55,000.44 is: 82,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,387.30 : 90,942.60 = 55,000.44 : x
  2. Step 2: Convert to fraction form
    60,387.30/90,942.60 = 55,000.44/x
  3. Step 3: Cross multiply
    60,387.30x = 90,942.60 × 55,000.44
  4. Step 4: Simplify right side
    60,387.30x = 5,001,883,014.74
  5. Step 5: Solve for x
    x = 5,001,883,014.74/60,387.30
  6. Step 6: Final answer
    x = 82,830.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.