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Finding the Fourth Proportional to 29,131.84, 43,697.58 and 8,355.40

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Solution

The fourth proportional to 29,131.84, 43,697.58 and 8,355.40 is: 12,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,131.84 : 43,697.58 = 8,355.40 : x
  2. Step 2: Convert to fraction form
    29,131.84/43,697.58 = 8,355.40/x
  3. Step 3: Cross multiply
    29,131.84x = 43,697.58 × 8,355.40
  4. Step 4: Simplify right side
    29,131.84x = 365,110,759.93
  5. Step 5: Solve for x
    x = 365,110,759.93/29,131.84
  6. Step 6: Final answer
    x = 12,533.05

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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.