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Finding the Fourth Proportional to 12,523.50, 17,284.05 and 7,220.02

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Solution

The fourth proportional to 12,523.50, 17,284.05 and 7,220.02 is: 9,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,523.50 : 17,284.05 = 7,220.02 : x
  2. Step 2: Convert to fraction form
    12,523.50/17,284.05 = 7,220.02/x
  3. Step 3: Cross multiply
    12,523.50x = 17,284.05 × 7,220.02
  4. Step 4: Simplify right side
    12,523.50x = 124,791,186.68
  5. Step 5: Solve for x
    x = 124,791,186.68/12,523.50
  6. Step 6: Final answer
    x = 9,964.56

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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.