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Finding the Fourth Proportional to 9,152.70, 12,630.72 and 4,960.95

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Solution

The fourth proportional to 9,152.70, 12,630.72 and 4,960.95 is: 6,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,152.70 : 12,630.72 = 4,960.95 : x
  2. Step 2: Convert to fraction form
    9,152.70/12,630.72 = 4,960.95/x
  3. Step 3: Cross multiply
    9,152.70x = 12,630.72 × 4,960.95
  4. Step 4: Simplify right side
    9,152.70x = 62,660,370.38
  5. Step 5: Solve for x
    x = 62,660,370.38/9,152.70
  6. Step 6: Final answer
    x = 6,846.11

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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.