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Finding the Fourth Proportional to 40,671.96, 61,008 and 11,089.80

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Solution

The fourth proportional to 40,671.96, 61,008 and 11,089.80 is: 16,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,671.96 : 61,008 = 11,089.80 : x
  2. Step 2: Convert to fraction form
    40,671.96/61,008 = 11,089.80/x
  3. Step 3: Cross multiply
    40,671.96x = 61,008 × 11,089.80
  4. Step 4: Simplify right side
    40,671.96x = 676,566,518.40
  5. Step 5: Solve for x
    x = 676,566,518.40/40,671.96
  6. Step 6: Final answer
    x = 16,634.72

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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.