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Finding the Fourth Proportional to 44,688.60, 67,070.70 and 18,412.20

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Solution

The fourth proportional to 44,688.60, 67,070.70 and 18,412.20 is: 27,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,688.60 : 67,070.70 = 18,412.20 : x
  2. Step 2: Convert to fraction form
    44,688.60/67,070.70 = 18,412.20/x
  3. Step 3: Cross multiply
    44,688.60x = 67,070.70 × 18,412.20
  4. Step 4: Simplify right side
    44,688.60x = 1,234,919,142.54
  5. Step 5: Solve for x
    x = 1,234,919,142.54/44,688.60
  6. Step 6: Final answer
    x = 27,633.87

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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.