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Finding the Fourth Proportional to 35,858.56, 49,478.80 and 19,940.88

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Solution

The fourth proportional to 35,858.56, 49,478.80 and 19,940.88 is: 27,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,858.56 : 49,478.80 = 19,940.88 : x
  2. Step 2: Convert to fraction form
    35,858.56/49,478.80 = 19,940.88/x
  3. Step 3: Cross multiply
    35,858.56x = 49,478.80 × 19,940.88
  4. Step 4: Simplify right side
    35,858.56x = 986,650,813.34
  5. Step 5: Solve for x
    x = 986,650,813.34/35,858.56
  6. Step 6: Final answer
    x = 27,515.07

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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.