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Finding the Fourth Proportional to 35,907.80, 53,828.49 and 18,338.90

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Solution

The fourth proportional to 35,907.80, 53,828.49 and 18,338.90 is: 27,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,907.80 : 53,828.49 = 18,338.90 : x
  2. Step 2: Convert to fraction form
    35,907.80/53,828.49 = 18,338.90/x
  3. Step 3: Cross multiply
    35,907.80x = 53,828.49 × 18,338.90
  4. Step 4: Simplify right side
    35,907.80x = 987,155,295.26
  5. Step 5: Solve for x
    x = 987,155,295.26/35,907.80
  6. Step 6: Final answer
    x = 27,491.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.