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Finding the Fourth Proportional to 11,800.74, 17,671.95 and 7,404.87

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Solution

The fourth proportional to 11,800.74, 17,671.95 and 7,404.87 is: 11,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.74 : 17,671.95 = 7,404.87 : x
  2. Step 2: Convert to fraction form
    11,800.74/17,671.95 = 7,404.87/x
  3. Step 3: Cross multiply
    11,800.74x = 17,671.95 × 7,404.87
  4. Step 4: Simplify right side
    11,800.74x = 130,858,492.40
  5. Step 5: Solve for x
    x = 130,858,492.40/11,800.74
  6. Step 6: Final answer
    x = 11,089.01

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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.