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Finding the Fourth Proportional to 14,324.55, 21,479.85 and 4,965.10

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Solution

The fourth proportional to 14,324.55, 21,479.85 and 4,965.10 is: 7,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,324.55 : 21,479.85 = 4,965.10 : x
  2. Step 2: Convert to fraction form
    14,324.55/21,479.85 = 4,965.10/x
  3. Step 3: Cross multiply
    14,324.55x = 21,479.85 × 4,965.10
  4. Step 4: Simplify right side
    14,324.55x = 106,649,549.54
  5. Step 5: Solve for x
    x = 106,649,549.54/14,324.55
  6. Step 6: Final answer
    x = 7,445.23

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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.