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Finding the Fourth Proportional to 29,786.45, 44,686.13 and 8,728.25

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Solution

The fourth proportional to 29,786.45, 44,686.13 and 8,728.25 is: 13,094.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,786.45 : 44,686.13 = 8,728.25 : x
  2. Step 2: Convert to fraction form
    29,786.45/44,686.13 = 8,728.25/x
  3. Step 3: Cross multiply
    29,786.45x = 44,686.13 × 8,728.25
  4. Step 4: Simplify right side
    29,786.45x = 390,031,447.10
  5. Step 5: Solve for x
    x = 390,031,447.10/29,786.45
  6. Step 6: Final answer
    x = 13,094.26

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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.