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Finding the Fourth Proportional to 21,903.65, 32,860.16 and 8,052.65

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Solution

The fourth proportional to 21,903.65, 32,860.16 and 8,052.65 is: 12,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.65 : 32,860.16 = 8,052.65 : x
  2. Step 2: Convert to fraction form
    21,903.65/32,860.16 = 8,052.65/x
  3. Step 3: Cross multiply
    21,903.65x = 32,860.16 × 8,052.65
  4. Step 4: Simplify right side
    21,903.65x = 264,611,327.16
  5. Step 5: Solve for x
    x = 264,611,327.16/21,903.65
  6. Step 6: Final answer
    x = 12,080.70

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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.