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Finding the Fourth Proportional to 14,483.80, 21,728.10 and 6,167.80

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Solution

The fourth proportional to 14,483.80, 21,728.10 and 6,167.80 is: 9,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,483.80 : 21,728.10 = 6,167.80 : x
  2. Step 2: Convert to fraction form
    14,483.80/21,728.10 = 6,167.80/x
  3. Step 3: Cross multiply
    14,483.80x = 21,728.10 × 6,167.80
  4. Step 4: Simplify right side
    14,483.80x = 134,014,575.18
  5. Step 5: Solve for x
    x = 134,014,575.18/14,483.80
  6. Step 6: Final answer
    x = 9,252.72

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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.