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Finding the Fourth Proportional to 7,728.92, 10,664.94 and 4,584.50

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Solution

The fourth proportional to 7,728.92, 10,664.94 and 4,584.50 is: 6,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.92 : 10,664.94 = 4,584.50 : x
  2. Step 2: Convert to fraction form
    7,728.92/10,664.94 = 4,584.50/x
  3. Step 3: Cross multiply
    7,728.92x = 10,664.94 × 4,584.50
  4. Step 4: Simplify right side
    7,728.92x = 48,893,417.43
  5. Step 5: Solve for x
    x = 48,893,417.43/7,728.92
  6. Step 6: Final answer
    x = 6,326.03

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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.