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Finding the Fourth Proportional to 45,346.60, 68,019.90 and 44,909.20

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Solution

The fourth proportional to 45,346.60, 68,019.90 and 44,909.20 is: 67,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,346.60 : 68,019.90 = 44,909.20 : x
  2. Step 2: Convert to fraction form
    45,346.60/68,019.90 = 44,909.20/x
  3. Step 3: Cross multiply
    45,346.60x = 68,019.90 × 44,909.20
  4. Step 4: Simplify right side
    45,346.60x = 3,054,719,293.08
  5. Step 5: Solve for x
    x = 3,054,719,293.08/45,346.60
  6. Step 6: Final answer
    x = 67,363.80

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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.