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Finding the Fourth Proportional to 40,656.20, 60,984.30 and 40,267.40

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Solution

The fourth proportional to 40,656.20, 60,984.30 and 40,267.40 is: 60,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,656.20 : 60,984.30 = 40,267.40 : x
  2. Step 2: Convert to fraction form
    40,656.20/60,984.30 = 40,267.40/x
  3. Step 3: Cross multiply
    40,656.20x = 60,984.30 × 40,267.40
  4. Step 4: Simplify right side
    40,656.20x = 2,455,679,201.82
  5. Step 5: Solve for x
    x = 2,455,679,201.82/40,656.20
  6. Step 6: Final answer
    x = 60,401.10

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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.