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Finding the Fourth Proportional to 29,937.40, 41,313.90 and 16,509.20

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Solution

The fourth proportional to 29,937.40, 41,313.90 and 16,509.20 is: 22,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,937.40 : 41,313.90 = 16,509.20 : x
  2. Step 2: Convert to fraction form
    29,937.40/41,313.90 = 16,509.20/x
  3. Step 3: Cross multiply
    29,937.40x = 41,313.90 × 16,509.20
  4. Step 4: Simplify right side
    29,937.40x = 682,059,437.88
  5. Step 5: Solve for x
    x = 682,059,437.88/29,937.40
  6. Step 6: Final answer
    x = 22,782.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.