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Finding the Fourth Proportional to 15,924.52, 21,975.80 and 8,852.60

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Solution

The fourth proportional to 15,924.52, 21,975.80 and 8,852.60 is: 12,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.52 : 21,975.80 = 8,852.60 : x
  2. Step 2: Convert to fraction form
    15,924.52/21,975.80 = 8,852.60/x
  3. Step 3: Cross multiply
    15,924.52x = 21,975.80 × 8,852.60
  4. Step 4: Simplify right side
    15,924.52x = 194,542,967.08
  5. Step 5: Solve for x
    x = 194,542,967.08/15,924.52
  6. Step 6: Final answer
    x = 12,216.57

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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.