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Finding the Fourth Proportional to 35,485.80, 48,969.76 and 19,571.68

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Solution

The fourth proportional to 35,485.80, 48,969.76 and 19,571.68 is: 27,008.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,485.80 : 48,969.76 = 19,571.68 : x
  2. Step 2: Convert to fraction form
    35,485.80/48,969.76 = 19,571.68/x
  3. Step 3: Cross multiply
    35,485.80x = 48,969.76 × 19,571.68
  4. Step 4: Simplify right side
    35,485.80x = 958,420,472.40
  5. Step 5: Solve for x
    x = 958,420,472.40/35,485.80
  6. Step 6: Final answer
    x = 27,008.56

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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.