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Finding the Fourth Proportional to 11,062.90, 16,557.90 and 8,584.30

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Solution

The fourth proportional to 11,062.90, 16,557.90 and 8,584.30 is: 12,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,062.90 : 16,557.90 = 8,584.30 : x
  2. Step 2: Convert to fraction form
    11,062.90/16,557.90 = 8,584.30/x
  3. Step 3: Cross multiply
    11,062.90x = 16,557.90 × 8,584.30
  4. Step 4: Simplify right side
    11,062.90x = 142,137,980.97
  5. Step 5: Solve for x
    x = 142,137,980.97/11,062.90
  6. Step 6: Final answer
    x = 12,848.17

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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.