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Finding the Fourth Proportional to 29,999.40, 44,901.90 and 21,251.40

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Solution

The fourth proportional to 29,999.40, 44,901.90 and 21,251.40 is: 31,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,999.40 : 44,901.90 = 21,251.40 : x
  2. Step 2: Convert to fraction form
    29,999.40/44,901.90 = 21,251.40/x
  3. Step 3: Cross multiply
    29,999.40x = 44,901.90 × 21,251.40
  4. Step 4: Simplify right side
    29,999.40x = 954,228,237.66
  5. Step 5: Solve for x
    x = 954,228,237.66/29,999.40
  6. Step 6: Final answer
    x = 31,808.24

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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.