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Finding the Fourth Proportional to 21,482.55, 32,224.37 and 8,337.87

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Solution

The fourth proportional to 21,482.55, 32,224.37 and 8,337.87 is: 12,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.55 : 32,224.37 = 8,337.87 : x
  2. Step 2: Convert to fraction form
    21,482.55/32,224.37 = 8,337.87/x
  3. Step 3: Cross multiply
    21,482.55x = 32,224.37 × 8,337.87
  4. Step 4: Simplify right side
    21,482.55x = 268,682,566.20
  5. Step 5: Solve for x
    x = 268,682,566.20/21,482.55
  6. Step 6: Final answer
    x = 12,507.01

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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.