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Finding the Fourth Proportional to 79,474.59, 109,626.33 and 47,187.33

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Solution

The fourth proportional to 79,474.59, 109,626.33 and 47,187.33 is: 65,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,474.59 : 109,626.33 = 47,187.33 : x
  2. Step 2: Convert to fraction form
    79,474.59/109,626.33 = 47,187.33/x
  3. Step 3: Cross multiply
    79,474.59x = 109,626.33 × 47,187.33
  4. Step 4: Simplify right side
    79,474.59x = 5,172,973,810.40
  5. Step 5: Solve for x
    x = 5,172,973,810.40/79,474.59
  6. Step 6: Final answer
    x = 65,089.66

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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.