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Finding the Fourth Proportional to 24,868.71, 34,318.80 and 13,690.71

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Solution

The fourth proportional to 24,868.71, 34,318.80 and 13,690.71 is: 18,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,868.71 : 34,318.80 = 13,690.71 : x
  2. Step 2: Convert to fraction form
    24,868.71/34,318.80 = 13,690.71/x
  3. Step 3: Cross multiply
    24,868.71x = 34,318.80 × 13,690.71
  4. Step 4: Simplify right side
    24,868.71x = 469,848,738.35
  5. Step 5: Solve for x
    x = 469,848,738.35/24,868.71
  6. Step 6: Final answer
    x = 18,893.17

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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.