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Finding the Fourth Proportional to 8,799.66, 13,208.76 and 8,601.32

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Solution

The fourth proportional to 8,799.66, 13,208.76 and 8,601.32 is: 12,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.66 : 13,208.76 = 8,601.32 : x
  2. Step 2: Convert to fraction form
    8,799.66/13,208.76 = 8,601.32/x
  3. Step 3: Cross multiply
    8,799.66x = 13,208.76 × 8,601.32
  4. Step 4: Simplify right side
    8,799.66x = 113,612,804.59
  5. Step 5: Solve for x
    x = 113,612,804.59/8,799.66
  6. Step 6: Final answer
    x = 12,911.04

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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.