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Finding the Fourth Proportional to 10,125.64, 13,971.06 and 6,146.44

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Solution

The fourth proportional to 10,125.64, 13,971.06 and 6,146.44 is: 8,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.64 : 13,971.06 = 6,146.44 : x
  2. Step 2: Convert to fraction form
    10,125.64/13,971.06 = 6,146.44/x
  3. Step 3: Cross multiply
    10,125.64x = 13,971.06 × 6,146.44
  4. Step 4: Simplify right side
    10,125.64x = 85,872,282.03
  5. Step 5: Solve for x
    x = 85,872,282.03/10,125.64
  6. Step 6: Final answer
    x = 8,480.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.