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Finding the Fourth Proportional to 35,920.55, 49,571.90 and 20,005.00

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Solution

The fourth proportional to 35,920.55, 49,571.90 and 20,005.00 is: 27,607.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,920.55 : 49,571.90 = 20,005.00 : x
  2. Step 2: Convert to fraction form
    35,920.55/49,571.90 = 20,005.00/x
  3. Step 3: Cross multiply
    35,920.55x = 49,571.90 × 20,005.00
  4. Step 4: Simplify right side
    35,920.55x = 991,685,896.46
  5. Step 5: Solve for x
    x = 991,685,896.46/35,920.55
  6. Step 6: Final answer
    x = 27,607.76

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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.