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Finding the Fourth Proportional to 8,907.68, 12,292.24 and 4,928.76

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Solution

The fourth proportional to 8,907.68, 12,292.24 and 4,928.76 is: 6,801.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.68 : 12,292.24 = 4,928.76 : x
  2. Step 2: Convert to fraction form
    8,907.68/12,292.24 = 4,928.76/x
  3. Step 3: Cross multiply
    8,907.68x = 12,292.24 × 4,928.76
  4. Step 4: Simplify right side
    8,907.68x = 60,585,500.82
  5. Step 5: Solve for x
    x = 60,585,500.82/8,907.68
  6. Step 6: Final answer
    x = 6,801.49

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Double scale
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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.