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Finding the Fourth Proportional to 12,658.02, 17,451.68 and 8,672.01

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Solution

The fourth proportional to 12,658.02, 17,451.68 and 8,672.01 is: 11,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.02 : 17,451.68 = 8,672.01 : x
  2. Step 2: Convert to fraction form
    12,658.02/17,451.68 = 8,672.01/x
  3. Step 3: Cross multiply
    12,658.02x = 17,451.68 × 8,672.01
  4. Step 4: Simplify right side
    12,658.02x = 151,341,143.48
  5. Step 5: Solve for x
    x = 151,341,143.48/12,658.02
  6. Step 6: Final answer
    x = 11,956.15

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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.