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Finding the Fourth Proportional to 79,245.24, 109,355.52 and 47,412.24

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Solution

The fourth proportional to 79,245.24, 109,355.52 and 47,412.24 is: 65,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.24 : 109,355.52 = 47,412.24 : x
  2. Step 2: Convert to fraction form
    79,245.24/109,355.52 = 47,412.24/x
  3. Step 3: Cross multiply
    79,245.24x = 109,355.52 × 47,412.24
  4. Step 4: Simplify right side
    79,245.24x = 5,184,790,159.56
  5. Step 5: Solve for x
    x = 5,184,790,159.56/79,245.24
  6. Step 6: Final answer
    x = 65,427.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.