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Finding the Fourth Proportional to 8,607.25, 11,877.27 and 4,829.90

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Solution

The fourth proportional to 8,607.25, 11,877.27 and 4,829.90 is: 6,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.25 : 11,877.27 = 4,829.90 : x
  2. Step 2: Convert to fraction form
    8,607.25/11,877.27 = 4,829.90/x
  3. Step 3: Cross multiply
    8,607.25x = 11,877.27 × 4,829.90
  4. Step 4: Simplify right side
    8,607.25x = 57,366,026.37
  5. Step 5: Solve for x
    x = 57,366,026.37/8,607.25
  6. Step 6: Final answer
    x = 6,664.85

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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.