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Finding the Fourth Proportional to 15,659.52, 23,476.90 and 7,764.75

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Solution

The fourth proportional to 15,659.52, 23,476.90 and 7,764.75 is: 11,640.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.52 : 23,476.90 = 7,764.75 : x
  2. Step 2: Convert to fraction form
    15,659.52/23,476.90 = 7,764.75/x
  3. Step 3: Cross multiply
    15,659.52x = 23,476.90 × 7,764.75
  4. Step 4: Simplify right side
    15,659.52x = 182,292,259.28
  5. Step 5: Solve for x
    x = 182,292,259.28/15,659.52
  6. Step 6: Final answer
    x = 11,640.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.