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Finding the Fourth Proportional to 11,658.51, 17,487.30 and 2,893.20

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Solution

The fourth proportional to 11,658.51, 17,487.30 and 2,893.20 is: 4,339.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,658.51 : 17,487.30 = 2,893.20 : x
  2. Step 2: Convert to fraction form
    11,658.51/17,487.30 = 2,893.20/x
  3. Step 3: Cross multiply
    11,658.51x = 17,487.30 × 2,893.20
  4. Step 4: Simplify right side
    11,658.51x = 50,594,256.36
  5. Step 5: Solve for x
    x = 50,594,256.36/11,658.51
  6. Step 6: Final answer
    x = 4,339.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.