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Finding the Fourth Proportional to 29,311.55, 43,966.93 and 7,124.86

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Solution

The fourth proportional to 29,311.55, 43,966.93 and 7,124.86 is: 10,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,311.55 : 43,966.93 = 7,124.86 : x
  2. Step 2: Convert to fraction form
    29,311.55/43,966.93 = 7,124.86/x
  3. Step 3: Cross multiply
    29,311.55x = 43,966.93 × 7,124.86
  4. Step 4: Simplify right side
    29,311.55x = 313,258,119.87
  5. Step 5: Solve for x
    x = 313,258,119.87/29,311.55
  6. Step 6: Final answer
    x = 10,687.19

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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.