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Finding the Fourth Proportional to 15,262.62, 21,062.88 and 8,548.23

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Solution

The fourth proportional to 15,262.62, 21,062.88 and 8,548.23 is: 11,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,262.62 : 21,062.88 = 8,548.23 : x
  2. Step 2: Convert to fraction form
    15,262.62/21,062.88 = 8,548.23/x
  3. Step 3: Cross multiply
    15,262.62x = 21,062.88 × 8,548.23
  4. Step 4: Simplify right side
    15,262.62x = 180,050,342.70
  5. Step 5: Solve for x
    x = 180,050,342.70/15,262.62
  6. Step 6: Final answer
    x = 11,796.82

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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.