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Finding the Fourth Proportional to 35,485.50, 48,970.34 and 19,570.49

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Solution

The fourth proportional to 35,485.50, 48,970.34 and 19,570.49 is: 27,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,485.50 : 48,970.34 = 19,570.49 : x
  2. Step 2: Convert to fraction form
    35,485.50/48,970.34 = 19,570.49/x
  3. Step 3: Cross multiply
    35,485.50x = 48,970.34 × 19,570.49
  4. Step 4: Simplify right side
    35,485.50x = 958,373,206.56
  5. Step 5: Solve for x
    x = 958,373,206.56/35,485.50
  6. Step 6: Final answer
    x = 27,007.46

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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.