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Finding the Fourth Proportional to 7,725.48, 10,660.97 and 4,699.48

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Solution

The fourth proportional to 7,725.48, 10,660.97 and 4,699.48 is: 6,485.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.48 : 10,660.97 = 4,699.48 : x
  2. Step 2: Convert to fraction form
    7,725.48/10,660.97 = 4,699.48/x
  3. Step 3: Cross multiply
    7,725.48x = 10,660.97 × 4,699.48
  4. Step 4: Simplify right side
    7,725.48x = 50,101,000.39
  5. Step 5: Solve for x
    x = 50,101,000.39/7,725.48
  6. Step 6: Final answer
    x = 6,485.16

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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.