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Finding the Fourth Proportional to 9,152.75, 12,630.81 and 4,961.00

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Solution

The fourth proportional to 9,152.75, 12,630.81 and 4,961.00 is: 6,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,152.75 : 12,630.81 = 4,961.00 : x
  2. Step 2: Convert to fraction form
    9,152.75/12,630.81 = 4,961.00/x
  3. Step 3: Cross multiply
    9,152.75x = 12,630.81 × 4,961.00
  4. Step 4: Simplify right side
    9,152.75x = 62,661,385.26
  5. Step 5: Solve for x
    x = 62,661,385.26/9,152.75
  6. Step 6: Final answer
    x = 6,846.18

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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.