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Finding the Fourth Proportional to 14,986.40, 22,479.60 and 6,227.60

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Solution

The fourth proportional to 14,986.40, 22,479.60 and 6,227.60 is: 9,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.40 : 22,479.60 = 6,227.60 : x
  2. Step 2: Convert to fraction form
    14,986.40/22,479.60 = 6,227.60/x
  3. Step 3: Cross multiply
    14,986.40x = 22,479.60 × 6,227.60
  4. Step 4: Simplify right side
    14,986.40x = 139,993,956.96
  5. Step 5: Solve for x
    x = 139,993,956.96/14,986.40
  6. Step 6: Final answer
    x = 9,341.40

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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.