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Finding the Fourth Proportional to 8,784.16, 13,174.08 and 2,628.16

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Solution

The fourth proportional to 8,784.16, 13,174.08 and 2,628.16 is: 3,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.16 : 13,174.08 = 2,628.16 : x
  2. Step 2: Convert to fraction form
    8,784.16/13,174.08 = 2,628.16/x
  3. Step 3: Cross multiply
    8,784.16x = 13,174.08 × 2,628.16
  4. Step 4: Simplify right side
    8,784.16x = 34,623,590.09
  5. Step 5: Solve for x
    x = 34,623,590.09/8,784.16
  6. Step 6: Final answer
    x = 3,941.59

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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.