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Finding the Fourth Proportional to 22,257.52, 30,716.21 and 12,698.98

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Solution

The fourth proportional to 22,257.52, 30,716.21 and 12,698.98 is: 17,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.52 : 30,716.21 = 12,698.98 : x
  2. Step 2: Convert to fraction form
    22,257.52/30,716.21 = 12,698.98/x
  3. Step 3: Cross multiply
    22,257.52x = 30,716.21 × 12,698.98
  4. Step 4: Simplify right side
    22,257.52x = 390,064,491.42
  5. Step 5: Solve for x
    x = 390,064,491.42/22,257.52
  6. Step 6: Final answer
    x = 17,525.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.