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Finding the Fourth Proportional to 9,152.87, 12,630.96 and 4,961.12

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Solution

The fourth proportional to 9,152.87, 12,630.96 and 4,961.12 is: 6,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,152.87 : 12,630.96 = 4,961.12 : x
  2. Step 2: Convert to fraction form
    9,152.87/12,630.96 = 4,961.12/x
  3. Step 3: Cross multiply
    9,152.87x = 12,630.96 × 4,961.12
  4. Step 4: Simplify right side
    9,152.87x = 62,663,645.12
  5. Step 5: Solve for x
    x = 62,663,645.12/9,152.87
  6. Step 6: Final answer
    x = 6,846.34

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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.