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Finding the Fourth Proportional to 22,596.84, 31,209.84 and 21,284.64

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Solution

The fourth proportional to 22,596.84, 31,209.84 and 21,284.64 is: 29,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,596.84 : 31,209.84 = 21,284.64 : x
  2. Step 2: Convert to fraction form
    22,596.84/31,209.84 = 21,284.64/x
  3. Step 3: Cross multiply
    22,596.84x = 31,209.84 × 21,284.64
  4. Step 4: Simplify right side
    22,596.84x = 664,290,208.86
  5. Step 5: Solve for x
    x = 664,290,208.86/22,596.84
  6. Step 6: Final answer
    x = 29,397.48

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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.