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Finding the Fourth Proportional to 18,492.75, 25,520.00 and 9,994.84

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Solution

The fourth proportional to 18,492.75, 25,520.00 and 9,994.84 is: 13,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.75 : 25,520.00 = 9,994.84 : x
  2. Step 2: Convert to fraction form
    18,492.75/25,520.00 = 9,994.84/x
  3. Step 3: Cross multiply
    18,492.75x = 25,520.00 × 9,994.84
  4. Step 4: Simplify right side
    18,492.75x = 255,068,266.83
  5. Step 5: Solve for x
    x = 255,068,266.83/18,492.75
  6. Step 6: Final answer
    x = 13,792.88

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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.