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Finding the Fourth Proportional to 75,612.80, 113,419.20 and 23,022.20

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Solution

The fourth proportional to 75,612.80, 113,419.20 and 23,022.20 is: 34,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,612.80 : 113,419.20 = 23,022.20 : x
  2. Step 2: Convert to fraction form
    75,612.80/113,419.20 = 23,022.20/x
  3. Step 3: Cross multiply
    75,612.80x = 113,419.20 × 23,022.20
  4. Step 4: Simplify right side
    75,612.80x = 2,611,159,506.24
  5. Step 5: Solve for x
    x = 2,611,159,506.24/75,612.80
  6. Step 6: Final answer
    x = 34,533.30

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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.