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Finding the Fourth Proportional to 8,772.70, 12,104.92 and 4,995.93

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Solution

The fourth proportional to 8,772.70, 12,104.92 and 4,995.93 is: 6,893.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.70 : 12,104.92 = 4,995.93 : x
  2. Step 2: Convert to fraction form
    8,772.70/12,104.92 = 4,995.93/x
  3. Step 3: Cross multiply
    8,772.70x = 12,104.92 × 4,995.93
  4. Step 4: Simplify right side
    8,772.70x = 60,475,308.00
  5. Step 5: Solve for x
    x = 60,475,308.00/8,772.70
  6. Step 6: Final answer
    x = 6,893.58

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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.