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Finding the Fourth Proportional to 14,462.55, 21,706.40 and 8,235.09

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Solution

The fourth proportional to 14,462.55, 21,706.40 and 8,235.09 is: 12,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,462.55 : 21,706.40 = 8,235.09 : x
  2. Step 2: Convert to fraction form
    14,462.55/21,706.40 = 8,235.09/x
  3. Step 3: Cross multiply
    14,462.55x = 21,706.40 × 8,235.09
  4. Step 4: Simplify right side
    14,462.55x = 178,754,178.16
  5. Step 5: Solve for x
    x = 178,754,178.16/14,462.55
  6. Step 6: Final answer
    x = 12,359.80

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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.