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Finding the Fourth Proportional to 50,994.80, 76,492.20 and 45,810.80

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Solution

The fourth proportional to 50,994.80, 76,492.20 and 45,810.80 is: 68,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,994.80 : 76,492.20 = 45,810.80 : x
  2. Step 2: Convert to fraction form
    50,994.80/76,492.20 = 45,810.80/x
  3. Step 3: Cross multiply
    50,994.80x = 76,492.20 × 45,810.80
  4. Step 4: Simplify right side
    50,994.80x = 3,504,168,875.76
  5. Step 5: Solve for x
    x = 3,504,168,875.76/50,994.80
  6. Step 6: Final answer
    x = 68,716.20

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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.