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Finding the Fourth Proportional to 38,860.84, 58,276.95 and 13,894.12

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Solution

The fourth proportional to 38,860.84, 58,276.95 and 13,894.12 is: 20,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,860.84 : 58,276.95 = 13,894.12 : x
  2. Step 2: Convert to fraction form
    38,860.84/58,276.95 = 13,894.12/x
  3. Step 3: Cross multiply
    38,860.84x = 58,276.95 × 13,894.12
  4. Step 4: Simplify right side
    38,860.84x = 809,706,936.53
  5. Step 5: Solve for x
    x = 809,706,936.53/38,860.84
  6. Step 6: Final answer
    x = 20,836.06

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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.