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Finding the Fourth Proportional to 14,480.84, 21,713.97 and 7,074.20

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Solution

The fourth proportional to 14,480.84, 21,713.97 and 7,074.20 is: 10,607.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.84 : 21,713.97 = 7,074.20 : x
  2. Step 2: Convert to fraction form
    14,480.84/21,713.97 = 7,074.20/x
  3. Step 3: Cross multiply
    14,480.84x = 21,713.97 × 7,074.20
  4. Step 4: Simplify right side
    14,480.84x = 153,608,966.57
  5. Step 5: Solve for x
    x = 153,608,966.57/14,480.84
  6. Step 6: Final answer
    x = 10,607.74

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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.