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Finding the Fourth Proportional to 8,792.64, 13,190.40 and 4,174.08

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Solution

The fourth proportional to 8,792.64, 13,190.40 and 4,174.08 is: 6,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.64 : 13,190.40 = 4,174.08 : x
  2. Step 2: Convert to fraction form
    8,792.64/13,190.40 = 4,174.08/x
  3. Step 3: Cross multiply
    8,792.64x = 13,190.40 × 4,174.08
  4. Step 4: Simplify right side
    8,792.64x = 55,057,784.83
  5. Step 5: Solve for x
    x = 55,057,784.83/8,792.64
  6. Step 6: Final answer
    x = 6,261.80

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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.