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Finding the Fourth Proportional to 54,626.80, 81,959.40 and 52,706.80

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Solution

The fourth proportional to 54,626.80, 81,959.40 and 52,706.80 is: 79,078.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,626.80 : 81,959.40 = 52,706.80 : x
  2. Step 2: Convert to fraction form
    54,626.80/81,959.40 = 52,706.80/x
  3. Step 3: Cross multiply
    54,626.80x = 81,959.40 × 52,706.80
  4. Step 4: Simplify right side
    54,626.80x = 4,319,817,703.92
  5. Step 5: Solve for x
    x = 4,319,817,703.92/54,626.80
  6. Step 6: Final answer
    x = 79,078.73

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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.