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Finding the Fourth Proportional to 8,801.64, 13,200.30 and 2,958.12

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Solution

The fourth proportional to 8,801.64, 13,200.30 and 2,958.12 is: 4,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801.64 : 13,200.30 = 2,958.12 : x
  2. Step 2: Convert to fraction form
    8,801.64/13,200.30 = 2,958.12/x
  3. Step 3: Cross multiply
    8,801.64x = 13,200.30 × 2,958.12
  4. Step 4: Simplify right side
    8,801.64x = 39,048,071.44
  5. Step 5: Solve for x
    x = 39,048,071.44/8,801.64
  6. Step 6: Final answer
    x = 4,436.45

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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.