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Finding the Fourth Proportional to 13,032.54, 17,984.97 and 7,658.60

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Solution

The fourth proportional to 13,032.54, 17,984.97 and 7,658.60 is: 10,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,032.54 : 17,984.97 = 7,658.60 : x
  2. Step 2: Convert to fraction form
    13,032.54/17,984.97 = 7,658.60/x
  3. Step 3: Cross multiply
    13,032.54x = 17,984.97 × 7,658.60
  4. Step 4: Simplify right side
    13,032.54x = 137,739,691.24
  5. Step 5: Solve for x
    x = 137,739,691.24/13,032.54
  6. Step 6: Final answer
    x = 10,568.91

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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.