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Finding the Fourth Proportional to 24,920.84, 34,390.60 and 13,742.84

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Solution

The fourth proportional to 24,920.84, 34,390.60 and 13,742.84 is: 18,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,920.84 : 34,390.60 = 13,742.84 : x
  2. Step 2: Convert to fraction form
    24,920.84/34,390.60 = 13,742.84/x
  3. Step 3: Cross multiply
    24,920.84x = 34,390.60 × 13,742.84
  4. Step 4: Simplify right side
    24,920.84x = 472,624,513.30
  5. Step 5: Solve for x
    x = 472,624,513.30/24,920.84
  6. Step 6: Final answer
    x = 18,965.03

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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.