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Finding the Fourth Proportional to 29,490.64, 44,232.72 and 10,512.88

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Solution

The fourth proportional to 29,490.64, 44,232.72 and 10,512.88 is: 15,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,490.64 : 44,232.72 = 10,512.88 : x
  2. Step 2: Convert to fraction form
    29,490.64/44,232.72 = 10,512.88/x
  3. Step 3: Cross multiply
    29,490.64x = 44,232.72 × 10,512.88
  4. Step 4: Simplify right side
    29,490.64x = 465,013,277.43
  5. Step 5: Solve for x
    x = 465,013,277.43/29,490.64
  6. Step 6: Final answer
    x = 15,768.16

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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.