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Finding the Fourth Proportional to 45,683.80, 68,525.70 and 43,934.20

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Solution

The fourth proportional to 45,683.80, 68,525.70 and 43,934.20 is: 65,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,683.80 : 68,525.70 = 43,934.20 : x
  2. Step 2: Convert to fraction form
    45,683.80/68,525.70 = 43,934.20/x
  3. Step 3: Cross multiply
    45,683.80x = 68,525.70 × 43,934.20
  4. Step 4: Simplify right side
    45,683.80x = 3,010,621,808.94
  5. Step 5: Solve for x
    x = 3,010,621,808.94/45,683.80
  6. Step 6: Final answer
    x = 65,901.30

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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.