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Finding the Fourth Proportional to 44,709.40, 67,039.80 and 18,416.80

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Solution

The fourth proportional to 44,709.40, 67,039.80 and 18,416.80 is: 27,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,709.40 : 67,039.80 = 18,416.80 : x
  2. Step 2: Convert to fraction form
    44,709.40/67,039.80 = 18,416.80/x
  3. Step 3: Cross multiply
    44,709.40x = 67,039.80 × 18,416.80
  4. Step 4: Simplify right side
    44,709.40x = 1,234,658,588.64
  5. Step 5: Solve for x
    x = 1,234,658,588.64/44,709.40
  6. Step 6: Final answer
    x = 27,615.19

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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.