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Finding the Fourth Proportional to 8,907.39, 12,292.25 and 4,928.65

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Solution

The fourth proportional to 8,907.39, 12,292.25 and 4,928.65 is: 6,801.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.39 : 12,292.25 = 4,928.65 : x
  2. Step 2: Convert to fraction form
    8,907.39/12,292.25 = 4,928.65/x
  3. Step 3: Cross multiply
    8,907.39x = 12,292.25 × 4,928.65
  4. Step 4: Simplify right side
    8,907.39x = 60,584,197.96
  5. Step 5: Solve for x
    x = 60,584,197.96/8,907.39
  6. Step 6: Final answer
    x = 6,801.57

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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.