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Finding the Fourth Proportional to 40,312.20, 60,468.30 and 40,020.60

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Solution

The fourth proportional to 40,312.20, 60,468.30 and 40,020.60 is: 60,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,312.20 : 60,468.30 = 40,020.60 : x
  2. Step 2: Convert to fraction form
    40,312.20/60,468.30 = 40,020.60/x
  3. Step 3: Cross multiply
    40,312.20x = 60,468.30 × 40,020.60
  4. Step 4: Simplify right side
    40,312.20x = 2,419,977,646.98
  5. Step 5: Solve for x
    x = 2,419,977,646.98/40,312.20
  6. Step 6: Final answer
    x = 60,030.90

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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.