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Finding the Fourth Proportional to 8,792.64, 13,189.68 and 2,636.64

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Solution

The fourth proportional to 8,792.64, 13,189.68 and 2,636.64 is: 3,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.64 : 13,189.68 = 2,636.64 : x
  2. Step 2: Convert to fraction form
    8,792.64/13,189.68 = 2,636.64/x
  3. Step 3: Cross multiply
    8,792.64x = 13,189.68 × 2,636.64
  4. Step 4: Simplify right side
    8,792.64x = 34,776,437.88
  5. Step 5: Solve for x
    x = 34,776,437.88/8,792.64
  6. Step 6: Final answer
    x = 3,955.18

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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.