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Finding the Fourth Proportional to 35,555.99, 49,069.59 and 19,640.66

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Solution

The fourth proportional to 35,555.99, 49,069.59 and 19,640.66 is: 27,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,555.99 : 49,069.59 = 19,640.66 : x
  2. Step 2: Convert to fraction form
    35,555.99/49,069.59 = 19,640.66/x
  3. Step 3: Cross multiply
    35,555.99x = 49,069.59 × 19,640.66
  4. Step 4: Simplify right side
    35,555.99x = 963,759,133.53
  5. Step 5: Solve for x
    x = 963,759,133.53/35,555.99
  6. Step 6: Final answer
    x = 27,105.39

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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.