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Finding the Fourth Proportional to 12,703.02, 17,523.72 and 8,666.82

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Solution

The fourth proportional to 12,703.02, 17,523.72 and 8,666.82 is: 11,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.02 : 17,523.72 = 8,666.82 : x
  2. Step 2: Convert to fraction form
    12,703.02/17,523.72 = 8,666.82/x
  3. Step 3: Cross multiply
    12,703.02x = 17,523.72 × 8,666.82
  4. Step 4: Simplify right side
    12,703.02x = 151,874,926.97
  5. Step 5: Solve for x
    x = 151,874,926.97/12,703.02
  6. Step 6: Final answer
    x = 11,955.81

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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.