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Finding the Fourth Proportional to 21,596.32, 32,392.92 and 6,809.50

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Solution

The fourth proportional to 21,596.32, 32,392.92 and 6,809.50 is: 10,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.32 : 32,392.92 = 6,809.50 : x
  2. Step 2: Convert to fraction form
    21,596.32/32,392.92 = 6,809.50/x
  3. Step 3: Cross multiply
    21,596.32x = 32,392.92 × 6,809.50
  4. Step 4: Simplify right side
    21,596.32x = 220,579,588.74
  5. Step 5: Solve for x
    x = 220,579,588.74/21,596.32
  6. Step 6: Final answer
    x = 10,213.76

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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.