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Finding the Fourth Proportional to 49,442.99, 74,163.92 and 12,003.48

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Solution

The fourth proportional to 49,442.99, 74,163.92 and 12,003.48 is: 18,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,442.99 : 74,163.92 = 12,003.48 : x
  2. Step 2: Convert to fraction form
    49,442.99/74,163.92 = 12,003.48/x
  3. Step 3: Cross multiply
    49,442.99x = 74,163.92 × 12,003.48
  4. Step 4: Simplify right side
    49,442.99x = 890,225,070.42
  5. Step 5: Solve for x
    x = 890,225,070.42/49,442.99
  6. Step 6: Final answer
    x = 18,005.08

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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.