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Finding the Fourth Proportional to 43,240.92, 64,868.16 and 11,652.21

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Solution

The fourth proportional to 43,240.92, 64,868.16 and 11,652.21 is: 17,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,240.92 : 64,868.16 = 11,652.21 : x
  2. Step 2: Convert to fraction form
    43,240.92/64,868.16 = 11,652.21/x
  3. Step 3: Cross multiply
    43,240.92x = 64,868.16 × 11,652.21
  4. Step 4: Simplify right side
    43,240.92x = 755,857,422.63
  5. Step 5: Solve for x
    x = 755,857,422.63/43,240.92
  6. Step 6: Final answer
    x = 17,480.14

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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.