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Finding the Fourth Proportional to 67,070.44, 100,594.50 and 20,312.20

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Solution

The fourth proportional to 67,070.44, 100,594.50 and 20,312.20 is: 30,464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,070.44 : 100,594.50 = 20,312.20 : x
  2. Step 2: Convert to fraction form
    67,070.44/100,594.50 = 20,312.20/x
  3. Step 3: Cross multiply
    67,070.44x = 100,594.50 × 20,312.20
  4. Step 4: Simplify right side
    67,070.44x = 2,043,295,602.90
  5. Step 5: Solve for x
    x = 2,043,295,602.90/67,070.44
  6. Step 6: Final answer
    x = 30,464.92

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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.