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Finding the Fourth Proportional to 60,907.26, 91,338.13 and 20,914.89

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Solution

The fourth proportional to 60,907.26, 91,338.13 and 20,914.89 is: 31,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,907.26 : 91,338.13 = 20,914.89 : x
  2. Step 2: Convert to fraction form
    60,907.26/91,338.13 = 20,914.89/x
  3. Step 3: Cross multiply
    60,907.26x = 91,338.13 × 20,914.89
  4. Step 4: Simplify right side
    60,907.26x = 1,910,326,941.76
  5. Step 5: Solve for x
    x = 1,910,326,941.76/60,907.26
  6. Step 6: Final answer
    x = 31,364.52

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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.