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Finding the Fourth Proportional to 79,412.40, 119,097.54 and 26,811

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Solution

The fourth proportional to 79,412.40, 119,097.54 and 26,811 is: 40,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,412.40 : 119,097.54 = 26,811 : x
  2. Step 2: Convert to fraction form
    79,412.40/119,097.54 = 26,811/x
  3. Step 3: Cross multiply
    79,412.40x = 119,097.54 × 26,811
  4. Step 4: Simplify right side
    79,412.40x = 3,193,124,144.94
  5. Step 5: Solve for x
    x = 3,193,124,144.94/79,412.40
  6. Step 6: Final answer
    x = 40,209.39

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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.