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Finding the Fourth Proportional to 35,409.72, 48,866.73 and 20,305.26

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Solution

The fourth proportional to 35,409.72, 48,866.73 and 20,305.26 is: 28,022.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,409.72 : 48,866.73 = 20,305.26 : x
  2. Step 2: Convert to fraction form
    35,409.72/48,866.73 = 20,305.26/x
  3. Step 3: Cross multiply
    35,409.72x = 48,866.73 × 20,305.26
  4. Step 4: Simplify right side
    35,409.72x = 992,251,658.00
  5. Step 5: Solve for x
    x = 992,251,658.00/35,409.72
  6. Step 6: Final answer
    x = 28,022.01

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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.