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Finding the Fourth Proportional to 15,060.52, 20,783.70 and 8,346.26

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Solution

The fourth proportional to 15,060.52, 20,783.70 and 8,346.26 is: 11,517.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.52 : 20,783.70 = 8,346.26 : x
  2. Step 2: Convert to fraction form
    15,060.52/20,783.70 = 8,346.26/x
  3. Step 3: Cross multiply
    15,060.52x = 20,783.70 × 8,346.26
  4. Step 4: Simplify right side
    15,060.52x = 173,466,122.23
  5. Step 5: Solve for x
    x = 173,466,122.23/15,060.52
  6. Step 6: Final answer
    x = 11,517.94

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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.