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Finding the Fourth Proportional to 8,606.82, 11,877.94 and 4,830.30

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Solution

The fourth proportional to 8,606.82, 11,877.94 and 4,830.30 is: 6,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.82 : 11,877.94 = 4,830.30 : x
  2. Step 2: Convert to fraction form
    8,606.82/11,877.94 = 4,830.30/x
  3. Step 3: Cross multiply
    8,606.82x = 11,877.94 × 4,830.30
  4. Step 4: Simplify right side
    8,606.82x = 57,374,013.58
  5. Step 5: Solve for x
    x = 57,374,013.58/8,606.82
  6. Step 6: Final answer
    x = 6,666.11

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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.