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Finding the Fourth Proportional to 14,480.44, 21,686.64 and 7,061.64

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Solution

The fourth proportional to 14,480.44, 21,686.64 and 7,061.64 is: 10,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.44 : 21,686.64 = 7,061.64 : x
  2. Step 2: Convert to fraction form
    14,480.44/21,686.64 = 7,061.64/x
  3. Step 3: Cross multiply
    14,480.44x = 21,686.64 × 7,061.64
  4. Step 4: Simplify right side
    14,480.44x = 153,143,244.49
  5. Step 5: Solve for x
    x = 153,143,244.49/14,480.44
  6. Step 6: Final answer
    x = 10,575.87

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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.