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Finding the Fourth Proportional to 29,489.80, 44,234.70 and 28,031.80

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Solution

The fourth proportional to 29,489.80, 44,234.70 and 28,031.80 is: 42,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,489.80 : 44,234.70 = 28,031.80 : x
  2. Step 2: Convert to fraction form
    29,489.80/44,234.70 = 28,031.80/x
  3. Step 3: Cross multiply
    29,489.80x = 44,234.70 × 28,031.80
  4. Step 4: Simplify right side
    29,489.80x = 1,239,978,263.46
  5. Step 5: Solve for x
    x = 1,239,978,263.46/29,489.80
  6. Step 6: Final answer
    x = 42,047.70

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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.