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Finding the Fourth Proportional to 29,421.40, 44,093.70 and 21,203.80

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Solution

The fourth proportional to 29,421.40, 44,093.70 and 21,203.80 is: 31,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,421.40 : 44,093.70 = 21,203.80 : x
  2. Step 2: Convert to fraction form
    29,421.40/44,093.70 = 21,203.80/x
  3. Step 3: Cross multiply
    29,421.40x = 44,093.70 × 21,203.80
  4. Step 4: Simplify right side
    29,421.40x = 934,953,996.06
  5. Step 5: Solve for x
    x = 934,953,996.06/29,421.40
  6. Step 6: Final answer
    x = 31,778.03

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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.