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Finding the Fourth Proportional to 8,671.58, 11,966.02 and 5,087.26

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Solution

The fourth proportional to 8,671.58, 11,966.02 and 5,087.26 is: 7,019.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.58 : 11,966.02 = 5,087.26 : x
  2. Step 2: Convert to fraction form
    8,671.58/11,966.02 = 5,087.26/x
  3. Step 3: Cross multiply
    8,671.58x = 11,966.02 × 5,087.26
  4. Step 4: Simplify right side
    8,671.58x = 60,874,254.91
  5. Step 5: Solve for x
    x = 60,874,254.91/8,671.58
  6. Step 6: Final answer
    x = 7,019.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.