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Finding the Fourth Proportional to 29,807.48, 44,711.20 and 7,620.88

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Solution

The fourth proportional to 29,807.48, 44,711.20 and 7,620.88 is: 11,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,807.48 : 44,711.20 = 7,620.88 : x
  2. Step 2: Convert to fraction form
    29,807.48/44,711.20 = 7,620.88/x
  3. Step 3: Cross multiply
    29,807.48x = 44,711.20 × 7,620.88
  4. Step 4: Simplify right side
    29,807.48x = 340,738,689.86
  5. Step 5: Solve for x
    x = 340,738,689.86/29,807.48
  6. Step 6: Final answer
    x = 11,431.31

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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.